I've drained too many hours into this, so much fun. Thanks Retro, very cool

God, so much nostalgia, Just spent a while playing the entire series today. Crazy how this went on for 10 years. Thanks JonBro, for the memories.

Good concept, but the difficulty fluctuates way too much. I can see where you ran out of and got ideas in the levels. Still trying to beat Ultimatum, it lags after a bit :/

Update: Just beat it, still brutal.