here is my list! all of them are for a500/1000 because thats all i have, and all i had growing up! other kids had nes and snes i had amiga and loved every minute of it! lol. here are my most oft played (no particular order)sorry for my overuse of exclamation points!
-Chuck rock
-Major motion (i like it alot more than spyhunter!)
-gianna sisters!(mario aint got nothin on this!)
-Crystal Hammer (like arkanoid, played alot)
-The Killing Gameshow (psygnosis is awesome)
-Tertis! (i cannot belive this hasnt been mentioned! i have the spectrum holobyte original)
-shanghai(good old fasion mahjong)
-stunt track racer (big ramp!)
-city defence
-flight simulator
-crazy cars
-clown-o-mania
-shufflepuck cafe!
-ducktails
-marble madness (also supprising not mentioned that i saw)
-zany golf
there are a bunch more but i doubt you want me listing about 2/3s of the games i own!
also i had no idea noiz2sa was for amiga. i only ever played it on my gp2x
