The weapon level system in this game is easily my favorite mechanic from any game ever, it provides a really important reason to keep yourself safe from enemies even when your max HP is high later on. I have never felt such a satisfying jump arc in any other platformer. Fetch quests can drag the game down but after repeat playthroughs they become kind of a mechanical process. The weapons (almost) all feel useful and distinct from another in a way that creates practically infinite possibilities to approach any combat scenario. The booster makes movement extremely fun and completely transforms the way you approach areas you have already been to. The true ending steps are pretty cryptic but I wouldn't have it any other way, it fits very well thematically with the story. And of course, the music is unparalleled. A must play game.