PLIP!

There's a colored barrier ahead. Stay a bubble and bounce off it, or tap to become a water drop and pass straight through. Either way, watch out for the spikes. That's how PLIP! works: each tap switches you between two forms. Updrafts carry you higher, and the next barrier gives you another decision to make. Sometimes it pays to wait and let the bubble bounce before you switch. Play through 24 levels across 8 settings, with flashes of rainbow color along the way. For iPhone and iPad. Available in 15 languages.