Super Robot Taisen W Cheats

Only doable on Valguard or Valzacard after second play where you can personalize Kazuma's seishin list. If you give Kazuma the seishin Tamashii, which multiplies attack damage by 3, by going to the screen where all pilots of one unit's seishins can be seen and selected, you can multiselect both Tamashii and Nekketsu (of different pilots) (only one of those spells will cost SP also) and it will have a grand total of X6 multiplier on your attack damage the next hit.

Begin a mission, any mission. When your motherships appear, and you go to the select mecha screen, press X. Unequip all parts from mecha, and sell them. Then, begin the mission, and fail. You will be taken to the pre-mission screen, with all the money from selling the parts, and the parts you sold. Repeat as desired for infinite money. It's possible upgrade every unit to the max this way as soon as you obtain them.