Monetizing free Android game on Ouya

I’m porting my small arcade game to Ouya right now,  on Android/iOS (when I can afford the derned license… I’m poor) it’s supported by ads, but I’ve decided they’re not the monetization strategy I should use for the Ouya. Should I make it $0.99 for full game? Or should I add a score limit (say, 100 or 150, then you have to pay $0.99 to continue playing)?