Easy "Eternal Mind" achievement
Score over 50,000 points in the Salaria endless level.
Easy "Terminal" achievement
Score over 10,000 points on all normal levels and over 20,000 points on all endless levels.
Easy "The Farmer" achievement
Start any level and immediately remain idle for 200 seconds. Then, return to the menu again and quit the game. Do not score any points before exiting.
Layout
In Arcade mode, finding the correct direction to travel can be difficult. Always look for alternate paths while moving. Search for different forks when running through specific areas at different heights and remember where they for your next attempt.