Think Columns - 0.4.1

This is my first game (and first 'bigger' programming project :p) and it's in beginning developing stage, so I would greatly appreciate any comments/suggestions :) Code design is based on Pete Shinners' Solarwolf, and game itself is based on John Rotenstein's Columns for Windows. There are many improvements I plan to do, e.g. better event-managing system, menus, pause, levels or/and special blocks, highscores, player ranking etc. For now there is only Windows version...