To use these toys, first, start with the Optimus Primal action figure. You can convert it from robot to gorilla mode in 7 easy steps. Then, take the Skullcruncher figure. Convert it from crocodile to armor mode in 6 steps and attach it to the Optimus Primal figure to armor him up for battle. When combining the toys to build your beast alliance, remember that each piece is sold separately, so availability might be an issue. You can also combine Beast Alliance robot toys with beast weapon figures for more fun battles. As for maintenance, keep the toys away from sharp objects to avoid scratches. If they get dirty, you can use a soft, damp cloth to clean them gently. Don't expose them to extreme temperatures as it might damage the plastic. Have a great time building your ultimate beast alliance with these awesome Transformers toys!