My current list is:
Sonic Colours (DS) - The best version of Sonic Colours.
Ultrakill (PC) - Extremely fast, heart beating adrenaline shooter game where blood is fuel.
Garou: Mark of the Wolves (Neo Geo) - One of the best fighting games that I always go back to.
Mario Strikers Charged Football (Wii) - One of the best Wii games in my opinion. Very fun to pick up and play.
Metal Gear Solid (PS1) - Hideo Kojima absolutely cooked a 5 star course with this.
(images are from https://www.steamgriddb.com/ )