Damn, Soul Axiom looked cool, so I was hoping for the best.
Seems like another disappointment. :/

Runbow seems more like a party game than anything. I can see it being enjoyable with 6+ people, although only in short spurts. Not sure it'd be worth more than $5.

Your rating of 6 is like my 8, based on previous reviews, so I'll check out Mutant Muds.  

My favourite one of the 9 was Freedom Planet, it was like Sonic but with a better gameplay and fights and good music.
Soul Axiom is running at like 15 fps, I don't know why.
Lovely Planet is...uhhh.
Typoman was cool, I enjoyed the play words.

I only played Freedom Planet, Runbow, and Mutant Mudds. Surprisingly, I liked Freedom Planet the most.

played all of them. Rive and Freedom Planet seems fun to me.