If you're looking for a useful tip to get through Time Attack challenges, consider the following glitch. This glitch allows you to pass through walls, floors, across pits, and more. You can basically bypass everything once you fall through the floor. In order to accomplish this glitch successfully, you must first head to any staircase. Climb up to the middle of the stairs and stop. Then, walk back down to the lowest step.

From here, press down, and then quickly press backwards (pressing both simultaneously). If done properly, the character will have a foot on the stairs and another foot in or underneath or behind the floor you're trying to breach (that the stairs are connected to). When you see this, release back on the d-pad, and the character will fall completely through the floor to a glitched area underneath the stage.

If the glitch doesn't work, make sure of two things: that your character isn't facing the staircase, and that you're pressing down and backwards simultaneously. Also keep in mind that depending on where you are, the glitch may not work properly. You may get stuck and have to reset the game in certain areas. Maria is also preferable to Richter because she can jump higher and hence get out of these glitched areas more easily.