This trick will allow you to bypass Acts 1-1 to 1-3, which will save you a lot of time, especially when trying to do multiple runs in other game modes. To do this, do the following steps:
- Start a game in Boss Rush mode.
- As soon as the game starts, return to the main menu.
- From the main menu, start any other game mode of your choice and you’ll start immediately in 1-4.
- You’ll still start in 1-4, regardless if you reached the Mark IV boss before returning to the main menu
- This trick will only work on the next mode you select after Boss Rush mode.