Wacky Painter by Rajcsányi László is a retro action game made with GB Studio.
In this game, you are a paintbrush and must paint around all the boxes to complete the grid. To stop you, there are 1-3 monsters which will make their way around the grid. If you hit the monster you will lose one of your lives and you only have three lives. As the game continues, it speeds up, making it more difficult. A presentation can be opened from the game, in which the basic elements are explained. It is an addictive game for wacky players.