Enemies in fangames

Thats right enemies like goomba's and koopa's and such. I play some fangames and some have good AI and some have crappy AI like the path movements in Clickteam productions. When I encounter an enemy from lets say um...
oh yeah, Super Mario dark horizon. Those robots witht the hammer hands. They are just like a goomba except they detonate when jumped on. That makes that enemy slightly different. Also, Shyguys should not be jumped on and killed like a goomba if they are both in your game. Just use your imagination and make them move differently or you can pick the shyguys up. I hate seeing clone enemies in fangames. In Super Mario epic 2, about almost every enemy was the same darn thing, you jump on it, it's dead.

I'm putting Grunts in my game.

From Halo?

I usually make simple AI for enemies beacuse I'm lazy AI is so boring to make.
Also I wont let my characters take damage beacuse you accidentally touched an enemy, beacuse that makes no sense.

From YI.

Which one are those?

"What a cute little Goomba. I think I'll pet it- OH MY FFFF TINY INVISABOWL MICROSKOPIK SPIKES OF PAYNE"

Anyway, on topic, as long as it semi-makes-sense, and has reasonably good AI, it's not too bad.

AI can be hard to implement sometimes.