Yo bro. You down to battle some bosses? Forever? For free? Awesome, bro. Awesome. BOSSES FOREVER 2.BRO is a "bro-op" action game on OUYA, PC, and Mac. In local co-op you and a buddy team up to climb a never-ending tower of infinite bosses with tons of different abilities.
As a free-to-play title, there's a lot of content here, and the gameplay is more than simple waves of bosses. The enemies learn from how you play, and as you get better, they get better. Basically the challenge increases, but not at the same rate for everyone who plays the game. There is also an upgrade system where you can increase stats such as health and power.
The game is bright, neon, and as developer TOO DX states on their site, "We liked the radness of the 80's and thought that more neon was necessary." You can download the game right now for OUYA, or go ahead and vote for the title on Steam Greenlight. It's also available to download directly to your PC or Mac from TOO DX's site. For the low price of absolutely free, there's no reason to not give this co-op experience a shot, bro.