Eh... pretty boring.
Levels are all the same with different artwork, you start with all the movement upgrades so there is nothing to chase after. Every level has the exact same objective. Save kids, collect chests. Play the first level and you've literally played the entire game. The bosses are.... painfully easy. Like... you just stand there and beat the crap out of them and your invulnerability frames protect you while you burn them down. Skip this one.