According to the game's instruction manual, Sketch Turner enjoys playing Sonic Spinball on his days off, which is another game developed by Sega.
Holding the Punch button anytime during gameplay will make Sketch rip a piece of paper from the background and make a paper airplane out of it. The paper airplane travels back and forth across the panel, causing massive damage to all enemies, including the player. However, doing this trick will also make the player lose a certain amount of health.
The SEGA logo during the game's introduction is blue in the Japanese release, but white in the internetional release.
After clearing a panel of all enemies, pressing the down button rapidly will cause Sketch to fart.