Guessed by @psychicscubadiver
One of the craziest, trippiest, most visceral gaming experiences I've ever had and ever will have. Thumper is the kind of game that just sucks you in, something about its dense atmosphere, the bizarre visuals and the incredibly ominous music that you have to play through - aggressive music, like an obstacle course, each beat something that can kill you, because unlike many other rhythm games, it's the music that's designed around the game, each of its sounds merely a reproduction of the hurdles put before you or the crazy abominations that keep showing up to destroy you.
Even after having finished the insanely difficult Play+ mode, which by the way was one of the most rewarding gaming experiences I've ever had, something about this game just keeps drawing me to it. It's just so unique, its gameplay so intense and gratifying, something so special about learning to control this little beetle and learning to soar through the madness put before it. It's a masterpiece.