The two latest Nitrome games on Newgrounds are Twin Shot and Fat Cat!
Twin Shot is a one or two player games where you play as some randon cherub cat type creatures that have bow and arrows. Use the arrows to kill the enemies and fire them into walls to make new platforms to climb on. All the levels wrap so use this to solve puzzles along the way and fire to places you might think you can't reach. Play Twinshot here: http://www.newgrounds.com/portal/view/597227
In Fat Cat play as both the owl and the pussycat in a frantic bullet hell shooter with more than a few twists! The owl cant be hurt and can shoot. The Cat is vunerable but once fed can power up a devistating mega burp to take out walls. Use the Owl to feed up the cat and keep him safe by pressing switches, using power ups and taking out enemies and huge bosses! Play Fat Cat here: http://www.newgrounds.com/portal/view/596777
We hope you enjoy it and if you like the games we post here on newgrounds please remember that we have over 100 games made by our team at our home site : www.nitrome.com