Perfectly medium platformer. Not great, not bad. You can tell this was made when Meat Boy and Braid were at their most popular - levels full of instakill spikes and walljumps, time control as core mechanic, etc. It's derivative enough nothing really stands out, but it works okay.

The music on the other hand is great. Maybe I should have expected it from a game called "Jazz", but they commissioned an original jazz score and got it performed by a live four-piece band. Every single level's theme is fantastic.