Gateways might seem like an everyday platformer,... until you discover the gateway guns. The gateway guns allow you to place two gateways on the walls, floors and ceilings of the lab so that when you pass through one you emerge out of the other.
Gateways takes place on a single sprawling map rammed with puzzles and challenges. As power ups are acquired more and more of the map opens up containing more power ups and secrets. In addition to the gateway guns Ed will also find a torch letting him light up the darker areas of the map and a mirror which can be used to deflect lasers.
A sophisticated help system will help Ed along throughout the game. Every puzzle has a help point next to it where Ed can use power orbs to find out if the puzzle can be solved using his current power ups and abilites. If it can be solved and you're still stumped then spending more power orbs will provide you with the solution.