I'd make it in 2012 for R'n'D 3.3.0.1. That's one of the my best works in R'n'D!
Here you need to make the blocks of the same colorto touch each other.
You can push it(s), but cannot destroy. If you'll drop it(s) into acidyou will die. Be careful!
Very cool levels, and I like all those modifications and mash-ups of graphics, sounds and especially the music! The same is true for your three other sets! Also very nice use of title screens, "toons" (menu animations), music information and all the other things.