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About TMNT - Tournament Fighters.
http://forums.nesdev.com/viewtopic.php?f=21&t=12893
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Author:  Ryukenden [ Fri Jun 12, 2015 1:20 am ]
Post subject:  About TMNT - Tournament Fighters.

Why usually it is impossible to choose two Hotheads? The reason - in the limited quantity of sprites?
(But, as is known, two Hotheads can be chosen so: in the beginning 1 player - somebody, and a computer - Hothead. Fight has passed. Then 1 player - Hothead and the computer - Hothead! It's interesting, that on the Dendy Hotheads are blinked, and on the emulator it is appreciable a little or not appreciable.)

Author:  psc [ Fri Jun 12, 2015 3:46 pm ]
Post subject:  Re: About TMNT - Tournament Fighters.

Hothead is so large (wide) that he easily exceeds the 8 sprite per scanline limit of the hardware. It was probably a producer's decision to disallow 2 Hotheads, as some players might think there is something wrong with their system with so much flicking going on. Excessive flickering does get distracting. Flickering doesn't slow down gameplay though.

Author:  Ryukenden [ Fri Jun 12, 2015 8:12 pm ]
Post subject:  Re: About TMNT - Tournament Fighters.

Thanks! :beer:

Author:  tepples [ Fri Jun 12, 2015 8:30 pm ]
Post subject:  Re: About TMNT - Tournament Fighters.

On the other hand, this other Hothead would use exactly half of the sprite limit:

Image
Grown-up Hothead from Super Mario World


They have the same attack pattern as the spark creatures from Super Mario Bros. 2, which got them from Donkey Kong Jr., which got them from Qix.

Author:  Myask [ Sat Jun 13, 2015 1:54 pm ]
Post subject:  Re: About TMNT - Tournament Fighters.

Ryukenden wrote:
Why usually it is impossible to choose two Hotheads? The reason - in the limited quantity of sprites?

That's what tcrf thinks. (It also lists GG codes to circumvent.)

Author:  feos [ Sat Jun 13, 2015 2:35 pm ]
Post subject:  Re: About TMNT - Tournament Fighters.

From debugging this game a bit, I can say that it's definitely an intended limitation they set, though we can only speculate about the real reasons. The most obvious one was already mentioned.

In case someone is curious what I reversed, I was looking for a reason to a bug when if Don throws a ball at a certain hight while doing a special, he becomes invincible. And I found out that almost every character has its own logic in nearly everything, and Don was certainly given this ability - to throw a ball from any state. They just failed to create this condition while testing (throwing a ball during special is quite hard!), and now there's this bug.

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