Empty Pack Uses
When you get a empty pack, you can combine it with other things to get better packs. For example, if you combined it with weather you get a SOLAR PACK. If combined with repair you get a QUICK PACK.
On planet Kiara before you take the Spaceship to planet Choco, search the area about five spaces right and seven to nine spaces up from Quintenix. Here you'll find the complete Inventor's Friend collection, including volumes on how to make Laser 3, Blade 4, and the Solar Pack!