Here's a short release list that I compiled from several Japanese magazines documenting some PC-Engine games that went unreleased, or went through some sort of change before being released. Since I don't have many PCE magazines after 1992, I've just concentrated on the years of 1990-1991, a very exciting and explosive time in the PC-Engine's life.
The months represent the status of games mentioned in the "release date undecided" sections of the magazines in those respective months. Fate? means the eventual fate of the game, as far as I know. A blank box means the game was not mentioned in that issue, and an equals sign means it had an identical listing to an earlier mention. If there are any errors, please let me know!
| Jan-Mar. 1990 |
Jul. 1990 |
Jan. 1991 |
May-Jun. 1991 |
Oct. 1991 |
Fate? |
Maker |
| Wardner no Mori | (CD) | = | = | = | cancelled | NEC Avenue |
| 3D Golf | ? | NEC Avenue | ||||
| Rainbow Islands (CD) | = | = | = | released mid-1993! | NEC Avenue | |
| Meikyuu Jima (Kickle Cubicle) | = | Meikyuu Jima Special "3/'91 Release" | = | cancelled | IREM | |
| Momotarou Densetsu III | cancelled? released as Momotarou Densetsu Gaiden? | Hudson | ||||
| Yuurei Kimi (The Ghost) | ? | Ask Kodansha | ||||
| Strider Hiryu (SG) | = | (PC/SG bi-compatible) | = | = | made the transition from SG->PCE Hu->CD. Released on ACD in 1994. | NEC Avenue |
| Omega Fighter | = | ? | UPL | |||
| Blade Land | = | ? | Nihon Soft Hanbai | |||
| Time Cruise [very different from 'II'] | = | = | cancelled/evolved into Time Cruise II | released as Time Cruise II | FACE | |
| Space Fantasy Zone | (CD) | = | = | = | cancelled | NEC Avenue |
| Forgotten Worlds (Card) | = | = | (CD)2M | released on SCD | NEC Avenue | |
| Hellfire (Card, CD) | = | Hellfire S (CD) (Released 4/12) | released on CD | NEC Avenue | ||
| Horror Story (CD) | = | = | = | released | NEC Avenue | |
| Doraemon 2 | = | Doraemon: Nobita no Dorabian Night (?) | released on Card and CD | Hudson | ||
| Galaxy Force (Card) | = | = | Galaxy Force II | cancelled | NEC Avenue | |
| Splendid Saga | = | = | cancelled | NCS | ||
| Dasshutsu (Escape) | released as Die Hard? | Nihon Bussan | ||||
| Chameleon Eyes: Mitsubayashi no Meikyuu (Maze of the Secret Grove) | Circus Lido (Released 4/6) | released | Uni Post | |||
| Meiyaku no Teigi (Definition of a Pledge) | = | = | ? | Human | ||
| A game planned by Mr. MTJ (Title TBA) | Magical Puzzle Popils | = | cancelled | Tengen | ||
| Marble Madness | = | = | cancelled | Tengen | ||
| Peter Pack-Rat | = | = | cancelled | Tengen | ||
| Dirty Dirty | ? | Hudson | ||||
| Survival Runner | cancelled | Home Data | ||||
| Crying Dragon | cancelled | Asmik | ||||
| Golf | cancelled | Intec | ||||
| Dragon Breed | = | cancelled | IREM | |||
| Zero Wing (Card) | (CD) | released on CD | Naxat | |||
| Madou Senshi ("Evil Guide" Fighter) / Seirei Senshi [same surtitle as Spriggan] (Card) | cancelled | Naxat | ||||
| Chiki Chiki Grand Prix | cancelled | Hudson | ||||
| TV Sports Baseball | = | cancelled | Victor | |||
| F-1 Circus International (CD) | released as F-1 Circus Special? | Nihon Bussan | ||||
| Bonanza Brothers (Card) |
= | released on SCD | NEC Avenue | |||
| Gain Ground (Card) | = | released on SCD | NEC Avenue | |||
| Super Cluster "10/91 Release" | released as Spiral Wave? | Media Rings | ||||
| Branders | ? | IGS | ||||
| Hunter | ? | Intec | ||||
| Cocoron | cancelled | Sur de Wave | ||||
| Chuka Taisen 2 | released as Gokuraku Chuka Taisen | Taito | ||||
| Mummy Head | ? | Taito | ||||
| Laugh of God | released as God Panic | Teichiku | ||||
| Dino Force | cancelled | Uni Post | ||||
| Title TBA (Shooting) | released as Terraforming? | Right Stuff |
It may be interesting to some that besides the released Darius Plus, three other PCE games had originally been programmed/intended as PC-Engine/SuperGrafx bi-compatible: Daisenpu, Out Run, and Forgotten Worlds (info taken from a Famitsu issue.)
Some more info on SuperGrafx Strider:

(Arcade Strider on the left,
SGX Strider on the right)
The pics from the magazine couldn't be from the arcade version (at least any
one that was released.) Differences include: a telling gradient in the life
bar of the "SGX" version, a score of 0 and a missing timer in the
SGX version, differences in width of the vertical pole that Hiryu hangs to,
and the fact that the resolution of the "SGX" shot seems to match
one of the maximum resolutions of the SGX, 352 pixels. (I've cropped the Arcade
pic down from 384 to 352 to show that the measurements align (like the space
to the left and right of the score bar.)) I've also altered the contrast of
the arcade version so that both pics would look as similar as possible.
I've translated some text and captions from three PC-Engine magazines that did reports on Strider for the SuperGrafx. The articles were posted on this forum page: Lost Levels Online
| [From Sept. 90 issue]
"Strider Hiryu" Sale day tentative Surprising action ^ Hiryu's motion is the highest selling point of this game. [?] The backgrounds cannot be beat, either. -> He fights under such backgrounds. *The screens on this page are from the Arcade version.
Are SG games being withdrawn? "Strider Hiryu", which was announced as exclusive software
simultaneously with the announcement of the SuperGrafx, has been changed
into a PC-Engine/SG bi-compatible format. This is probably good news for
PC-Engine users, but something to stop the hearts of SGX users. With this
announcement, the lineup of games developed for the SGX by NEC Avenue
has been ended. ['nakunaru' can mean 'lost' or 'died/dead'] *The screenshot on this page is from the Arcade version of "Strider Hiryu". It has become bi-compatible. [From Sept. 91 issue] PC-Engine/SG bi-compatible format (tentative) "Strider Hiryu" has many fans by virtue of its stylish action
and tempo. The charm of this game is in the fine motion of the hero Hiryu.
The PC-Engine version will be a full conversion from the arcades, although
the characters [have] become somewhat smaller. Moreover, on the SG, flickering
decreases compared with the PC-Engine. The demonstration scenes after
a stage is cleared are also due to be reproduced as-is. Since development
is liable to be delayed, the release will probably be pushed to next year.
^ Hiryu faces a gorilla robot. [He's not as tough as he looks!] or [He's
no pushover!] (Dictionaries are no help.) |
Here is what I make of it all:
Games magazines can't be trusted to keep their information straight, so let's
take it all with a grain of salt.
They say the screenshots are from the arcade version, but all the shots (except the shot in the Sept. 91 pic with Mecha-Pon) are demonstrably NOT from the arcade. (Any version that I've seen, anyway.)
Strider was announced at the same time as the SGX's announcement in 1989. At any rate, NEC Avenue had a license for it and Daimakaimura, and began some sort of development on both titles. NEC Avenue released some pictures of Strider around Sept. 1990. I don't think the magazines saw it in action because the writer of the Sept. 1990 article was speculating on how feasible the conversion would be, and wrote his hopes for smooth, fast animation.
In January 1991, the shocking announcement is made that Strider will be a PCE/SG bi-compatible game, like Darius Plus was. This obviously shows NEC Ave's lack of confidence in the SGX, and thus the SGX-only version is killed off.
Then in Sept. 1991, Strider still stands at just 20% completed. The article writer describes how Strider will play differently when on a regular PC-Engine or on a SuperGrafx. This could be speculation (drawing from experience with Darius Plus), a first-hand witness, or (more likely?) quoting from NEC Avenue's press releases.
And here is the original Japanese text:
[From Sept. 90 issue]
| ストライダー飛竜
大魔界村でグラフィックの再現率のよさを実証済み。やっぱりつぎはこれしかないよね。 発売日未定 とんでもないアクション ↑飛竜の動きがこのゲームの最大のウリ ←こんな斜面まで登場する多彩なアクション 背景も負けてない このゲームは、アクションに対する動画の流れに加え、背景の美しさが魅力。そのエキゾチックな背景は、今でも熱狂的なファンを持つ。SGならば、BG2画面という特性をいかし、こうした美しい背景をそっくり移植することが可能だ。ただし、クオリティの高い画面が大量のメモリを食うというのを覚悟しなければならない。 →こんな背景下で戦う →塔の上まで登れる始末 ←そして塔の上での対決。登ったり飛んだり跳ねたり回転したりと多彩きわまりないアクション *このページの画面は業務用のものです。 |
[From Jan. 91 issue]
| SG専用ソフト撤退へ?
スーパーグラフィックス発表と同時に専用ソフトとしての制作が発表された「ストライダー飛竜」が、PC/SG両対応に変更された。PCエンジンユーザーにとっては朗報が、スーパーグラフィックスユーザーにとっては心中穏やかならぬものがあるのではないだろうか。これでNECアベニューの制作予定でスーパーグラフィックス専用というライナップはなくなる。しかしもちろん、スーパーグラフィックスならばよりクオリティの高いプレイができる両対応という形でサポードしていくとのこと。ちなみに「ストライダー飛竜」は数少ないHuカードソフトで、8メガの予定だ。 ↑これは業務用の「ストライダー飛竜」の画面。両対応になった。 |
[From Sept. 91 issue]
| PC・SG両対応Huカード(未定)
派手なアクションとテンポのよいゲーム展開で多くのファンを持つ「ストライダー飛竜」。主人公の飛竜の動きは細かく、自分の思った通りに動かせるのがこのゲームの魅力だ。PCエンジン版はキャラクタが多少小さくなるが、業務用からの完全移植になる。またSGではPCエンジンに比べ、ちらつきが少なくなる。ステージクリアのデモもそのまま再現される予定だ。開発は遅れぎみで、発売はやはり来年になってしまう。 現在の開発状況20% ↑ごりら形ロボットに向かっていく飛竜。こんな奴敵じゃないっスよ! ↑いろいろな仕掛けに飛竜の派手なアクション。これがこのゲームの魅力だ。 |