0valis - Version 1.0 Ovalis is a challenging and exciting game of fast manipulation, strategy, reflex, precision and skill similar to legendary Tetris, but also very different with many new features. Different shaped pieces composed of coloured regular, convex and concave elements fall leftside right at exponentially increasing speed after each new level. The object of the game is to manipulate pieces to form 95% or 100% filled columns, which will then disappear. The game is over after all columns are filled so there is no space left for control of falling piece.