For the fairest possible review, this is going to be looked at as a concept pitch.
It looks interesting, I'll say that. The look of Limbo is accurately produced. The Mario portion, however, is wonky, and I'll have to list down all the problems I've encountered (There might be more, but like I said, this is what I've encountered).
-Standing near the edge, with constantly flip--flop between his standing and jumping frames.
-In the air, going upward, if you touch the edge of blocks, you will do this faux double jump.
-I've encountered that you can walk on air between the two-block and three-block platforms on the right hand side of the stage. If you jump however, you'll fall down as normal.
The block flashing red whenever you hit it to release a coin is a nice touch.
In the end, I'd like to see this continued into a level pack of sorts when and if the gameplay is refined. I'll have to say that if this is going to be just a Mario game with a Limbo skin, just be careful when using the darker shades, because Mario games tend to be very clear on what's on screen, and noticing the blocks blend into pipes fairly well. (This will be dependent on the user's monitor and settings.) I wouldn't worry about it that much, but then again, the underground and castle levels might be difficult to pull off because of it).
