The Secret of Retropolis is a relatively short game, with an average playtime of around 1.5 hours for the main story. If you want to complete all of the side quests and find all of the collectibles, you can expect to spend around 2.5 hours playing the game.
Some tips and tricks for the game The Secret of Retropolis:
Explore every nook and cranny. There are many hidden secrets and collectibles scattered throughout the game world, so take your time to explore every area thoroughly.
Use your environment to your advantage. There are many objects in the game world that you can interact with, so use them to your advantage to solve puzzles and progress through the game.
Don’t be afraid to experiment. The game is full of surprises, so don’t be afraid to try new things and see what happens.
Use your brainpower. The game is full of puzzles, so use your brainpower to solve them.
Don’t give up. The game can be challenging at times, but don’t give up. Just keep at it and you’ll eventually solve the mysteries of Retropolis.