How can i cross the cracks in the mirage tower?

Your local part store should carry a spark plug hole repair kit. Just make sure you keep the metal chips that get made from cutting the new threads out of the engine. Get some axle grease and coat the tap so that the chips will stick to it instead of falling down into the engine.

-Complete game
-Go to the ***-Gen's second tower with lift
-At the top trash the place then pick up a monitor and throw it from top of tower
-Get achievement
-To get your first code ever found hold down RB RT LB UP on d-pad and X
-Free fall glitch go back to the ***-Gen's second tower, trash it and pick something up but don't move and he will look like he is falling

It could be cracked or warped. they are not expensive and easy to replace.

The crack you refer to is a carbon track laid down by the high tension spark jumping to earth from the coil tower, caused by a damp atmosphere and a bad insulator on the king lead, the carbon track can be scratched out or filed off and then coated with ladies nail polish, problem solved till the next time! Could try a coil cover, if you can't get hold of one, get a rubber glove and cut one of the fingers down to make a tight fit round the lead, then tape the glove over the coil tower. (that's a trick that works in rainy Manchester UK)

Return it for a refund - design flaw

This is due to mirage effect, it is most common in desert where traveler get the wrong feel of oasis, but actually that is due to mirage effect.
Mirage is formed because air with less temperature having greater refractive index than the air with higher temperature, as light passes faster in warm ,less dense air than dense, cold air. The rays get diverted and band when passing from cold to the hot and vice versa By this phenomena, we get the mirage effect and illusion of water on road or desert is generated

sound like throttle position sensor.

If the receiver shuts down after some time operating properly it is likely caused by a heat issue or crossed (shorted) speaker wires. Please make sure that the unit is adequately vented and the air vents/fan on the back of the receiver is clean. If it is then carefully check all of the speaker wires for cracks, damage, and/or crossed wires.

Now, don't you worry.
I have a solution for you, go to Mauville city and take a mach bike. Take the bike and ride on the crack but make sure that you don't ride on it more then once.

It is possuble that you have run out of archive space. To clear some up, press 2ND - MEM (the + key), 2 then 1. This will give you a list of all things on your calculator. Some of these may be neccessary for some math courses, but you can always put them back on later, so you can remove anything you want from here without any irreversable effects. Delete anything you don't need (excluding the games and Mirage, of course) by moving next to it with the up and down arrow keys and pressing the DEL key.