Ranked in these QuestionsQuestion Ranking
Pro Portal x 4
Gateways has the same formula as the great Portal, except that it's in 2D, BUT, they introduce 3 new types of portal guns, a gun that makes you smaller/bigger, a gun that shifts gravity 90 or 180 degrees, and the best one, a time travelling gun. The last part of the game lets you used all the 4 guns together for mind bending puzzles.
Con Lacks clean or clever puzzles
Unlike Portal, a game with high polish that shows in its puzzle designs Gateways has a clear lack of polish to its puzzles which makes for a subpar experience as it the games design can lead to problems interpreting the puzzles appropriately.