BadApple! demo for Sega Megadrive

[Stef_D]

Highly inspired by this :

http://68000.web.fc2.com/bad_apple.html

 

I decided to do my own version of this demo for the sega megadrive

I initially wanted to proof it was possible to achieve full resolution video while keeping 30 FPS playback rate. After many effort i finally completed it.

 

4 MB version :

 

https://dl.dropbox.com/u/93332624/dev/megadrive/demo/BadApple_p1.bin

https://dl.dropbox.com/u/93332624/dev/megadrive/demo/BadApple_p2.bin

 

8 MB version (without bank switch) :

 

https://dl.dropbox.com/u/93332624/dev/megadrive/demo/BadApple.bin

 

Note that the 8 MB version can work only with Mega Everdrive or custom flash cart supporting full 8 MB mapping (without SSF2 bank switch style). Also some special emulator can support it as well as this one :

http://umk3.hacking-cult.org/2.11hack.zip

 

The good point is that it does work on real hardware exactly as on emulator

[Stef_D]

YouTube link :

 

Edited November 29, 2012 by Stef_D

[+Yurkie]

Hold on???? That entire video is from the rom above?

 

 

[Torr]

I know, it's amazing. I can't belive it runs so well and sounds as good as it does.

 

But it doesn't work on a stock Genesis from my understanding, am I right?

[Stef_D]

The entire video is from the rom, and it does works on a stock Genesis.

It's means to work on NTSC system as the video playback is 30 FPS (it will be play at 25 FPS on PAL system and such get quickly desynchronized with sound).

 

The 2 x 4MB version work on any 4MB flashcart, the 8 MB version only work on some flash cart (as the Mega Everdrive) which allow direct mapping of large rom

Edited November 29, 2012 by Stef_D

[madmax2069]

Very awesome job stef. I was following your progress over at spritesmind.

[Stef_D]

Thanks It though sometime but i finally completed it

[philippe]

Very nice

[gorfcadet]

WOW!!! That was freaking cool! Way to go!

[ballyalley]

I decided to do my own version of this [bad Apple] demo for the sega megadrive

 

I know that this is an old thread... but I only just got a Mega Everdrive yesterday. I was looking for some homebrew games and demos to see what the Sega scene has created over the years. I ran across this Bad Apple demo while watching an episode of the YouTube channel show "Game Sack" this evening. So, I loaded-up the 8MB version and... was amazed. If you heard something go "bump" a little while ago, then just know it was my jaw dropping.

 

What really struck me about halfway through the video was that it was running at a such a low resolution (320x200 or something, right?). I'm not familiar with the demo's source material, but I was able to enjoy it anyway. This is actually the first demo I've seen on a Genesis. I have a feeling that it is going to be a tough demo to follow-up on.

 

Adam

[Osgeld]

Look up overdrive by titan

[JAC!]

Great job Stef! I remember when I first saw this on Pouet in 2012. The video is great to play around with ideas for own encoding on different platforms This way I also fond this even:

 

http://spritesmods.com/?art=veccart&page=4

 

VECTREX - man, VECTREX

[+-^CrossBow^-]

Look up overdrive by titan

 

Except that you won't see all the effects properly on an NTSC Genesis. It does still work so I'm told, but many of the special effects in the demo only work on PAL machines.

[Flojomojo]

These Dropbox links are dead but I was able to find some working links elsewhere.

 

Posting here for posterity. Apologies to Stef if he updates this again. Note that the 8MB version requires bank switching hardware like Everdrive, or certain emulators.

 

BadApple_p1.bin

BadApple_p2.bin

BadApple.bin

[+-^CrossBow^-]

These Dropbox links are dead but I was able to find some working links elsewhere.

 

Posting here for posterity. Apologies to Stef if he updates this again. Note that the 8MB version requires bank switching hardware like Everdrive, or certain emulators.

 

BadApple_p1.bin

BadApple_p2.bin

BadApple.bin

 

Yeap I can confirm that on my X7 that the full 8mb one runs fine. However, the original Titan Overdrive demo will always crash during the credits section when the robot is shooting the names. Tested it with several different versions of the rom file I could find, and on 3 different Genesis systems. So the Overdrive demo pretty much requires PAL hardware.

 

Speaking of PAL... there is lots of information on converting PAL 50hz to 60hz...but nothing on getting a 60hz Genesis to display 50hz?! Unless the trick with changing the main crystal in the Genesis is the same deal on the 60hz models, only to substitute with a 50hz PAL version?