In this dexterity game you score points for removing blocks and placing them in a higher position on the X-shaped base. When this is managed without knocking down any blocks the player can remove a second block to keep as a scoring piece. Players also have to collect all blocks they let fall as negative points. Players can get rid of those by picking scoring blocks in the same colour.
I took the German version of the rules and sent it through four different online translation programs. The rules as I have them here are the most consistent translations with minor amounts of editing and clarifications.