Backflip Studios, creators of Ragdoll Blaster 2 and Paper Toss, have no intention of slowing down when it comes to Apple's fleet of gaming devices. The hardy software maker has announced no less than five games coming to iPhone and iPad in the coming months.

Released today and available on the App Store right now is free bowling time-waster, Strike Kinght. In the same vein as Paper Toss, Strike Knight is free, but you can pay through in-app purchases to remove the adverts.

This month, the developer will also release a free, ad-supported version of its boat-based Flight Control knock-off Harbor Havoc 3D.

In June, Backflip will make its first tentative steps onto the iPad with a supersized edition of Paper Toss. Mostly the same addictive mini-game, but with a few new features. According to Backflip, the original (and free) iPhone and iPod touch version was downloaded over 20 million times.

Throughout the rest of the month, the developer will bring two brand new games to iPhone. NinJump is a casual jumping game that has you leaping between two adjacent buildings, while you collect powerups and avoid enemies. Sounds a bit Ninjatown, to us.

Finally, Graffiti Ball is a physics-based game that looks like it has you drawing out paths for a ball using spray cans.

All the games will be available for free, but some will be ad-supported and with the option to remove ads through in-app purchases.