I can personally say that Capsized is good. Side scrolling keyboard-mouse/controller (Pretty sure there was controller support, can't remember, it's been a while) platforming shooter. Kinda Half-Life-ish, kinda Metroid-ish. The visuals are interesting to look at, and very alien, which is a good thing considering it's an alien planet and all. Under default controls, the mouse aims and fires, WASD moves and number keys cycle through weapons. You've got a jetpack, and a grappling hook, which add quite a bit of variety to the gameplay. I'd recommend it.
I'd buy the bundle if I had a means to. Ironically, I've got quite a bit of money in my Steam wallet, but no means of buying anything online other than on Steam. Oh well, I've got a lot of unplayed games anyway, no biggie.