Hello all Lemmings lovers! I need some of your help!

I'm currently preparing a very special surprise for one of my side projects, I am a coder for a fighting game engine and I'm planning to add a surprise Lemmings level to one of my creations (it's weird, I know).

While I could choose an existing Lemmings level everyone could pretty much google for it and just find a solution, it wouldn't be fun.

Due to engine limitations I'd probably like to keep the MAX Lemming count to at least less than 10, so I don't eat too many resources when running the level.

My question is, what level would be perfect for the job? Something challenging, almost rage inducing but not impossible.

Maybe a challenge setup for a previous level?

I'm not a Lemmings expert, so I hope you guys can help me out!

I will show you all the result when it's done, of course.