Top Hat Willy is a platform computer game created by Tero Heikkinen for the Commodore Amiga and was released in 1994. The objective of the game is to collect 160 pieces of trash that are scattered around the 100 room gamplay area. The rooms are set up in a 10 x 10 grid, each room connecting to its four surrounding rooms. The player has 9 lives. The game is based on the ZX Spectrum game Jet Set Willy. Source: Wikipedia, "Top Hat Willy", available under the CC-BY-SA License.