Need examples of high contrast games with demos

[ckrtech]

I've been messing with some video output of various machines - making S-Video cables, looking to possibly change some resistors, add video mod boards, etc.

 

I am looking for some examples of games that would provide some solid colors and are quite contrasty - darks and lights. Ideally, they would have a decent amount of animation on power up (i.e. demo) or can be started and have some immediate animation that is exactly the same with each power up.

 

My 8-bit computer (cartridge) collection is rather modest (20?), but hopefully I have a few that are mentioned. Been playing River Raid lately, so I have used that.

 

I'd like to do some direct capture of various output from the same machine and do some A/B/C/D comparisons.

 

Have some suggestions?