The Fancy Pants Adventures: World 1, also known as The Adventures of Fancy Pants Man or Fancy Pants, is a stickman adventure platformer with dungeon-crawl elements. The player, via a stickman dressed in stylish orange pants (Fancy Pants Man), explores various aboveground and underground environments. During their adventure, they collect wispy squiggles and search for hidden trophies.
The player starts in a room that features five doors (Start Game, Level Select, Trophies, Do Not Enter!, and Options). The Start Game door leads to the first part of World 1. The Level Select door gives the player the option to replay any of the game's three levels out of order after they've completed each one. The Trophies door leads to their personal trophy room. The last two doors await exploration.
When the player explores World 1, they direct the FPM to run, jump, and duck his way through, around and over obstacles, including floating land masses, vertical columns, high walls, moving platforms and ceilings that curve backward at extreme angles. They also deal with enemies, including black spiders that can kick and bounce the stickman, mice that shoot deadly squiggles, and a boss-level penguin. The player defeats enemies by directing the FPM to jump on top of them. They use spring platforms and special maneuvers to help them as well.
If the health bar at the top-left corner depletes too much, he dies. The player restarts at the last opened door.
