Now i'm back on track.
Number 40 is Wario Land 3, for the Game Boy Color back in 2000. It built on the excellent gameplay dynamics of Wario Land II: the immortality meaning that navigating cleverly-constructed levels was your key task, well, Wario Land 3 upped the cleverness several levels, with each stage containing multiple keys, each to one treasure chest, and with Wario's powers being upgradeable (though that was also a drawback, as things like "can't swim" were VERY annoying in the early-game), meaning you had to think at a higher level all the time in a deceptively-simple platformer.
Number 39 was a dating sim and a medieval SRPG in one
Monster Hunter: pissing me off since 2010.