The presentation is the stronggest part of the game, but the gameplay feels lacking polish. As some players have mentioned, the melee was an extremely powerful weapon, and all the other weapons feel way too weak to use.
All I did was run up to each boss and smack them with the melee and breezed through all the bosses.
Music and art is top-tier but I find myself occasionally confused which part of the map is a wall, and which part is a floor sometimes.