Once you saved your game (beat the game first!) mechs that appear on days that are not divisible except by itself (i.e., days that are prime number days, like 2, 3, 5, 7, 11, etc. - break out your math book) are super-powerful.

For example, between days 20 to 30, the Wild Mechanics will have a used SV with quad legs, heavy core, and one arm cannon at a cost of 1,500,000.

On the main navigation screen, rotate the Right Thumbstick clockwise. Your icon will rotate. Each time they complete a revolution, you'll earn 100 New Yen. You can earn up to 1000 New Yen each day doing this.

Blow up the trash around the level (oil cans, old cars, old buses, etc.) and earn some easy New Yen. Shibuya is a good level to do this in, because it has a ton of trash. Notte that cars can be blown up twice.

If you upgrade an Aeron 25mm minigun to level 98 heavy (at a cost of around 220,000y)its attack power raises to about 1000. If you raise it one more level to level 99 heavy, its attack power will be 17,525 but it will cost 6,700,000y. Another downside is its ammo capacity decreases from 94 to 6 but one shot should destroy any sv.

Visit any of the mech stores on any day that's numbered a mulitple of 6 (6, 12, 18, 24... etc.). The mech in the center of their selection will be a different color than the rest, and it will have hocked-up and powerful weapons!

To skip any intermission sequence, hold L+R and click both analog sticks.