Press L1 + L2 + R1 + R2 + Start to display the password entry screen. Then, enter one of the following passwords in Hiragana:

Gageru Ape
Enter "rusarukeka" as a password.

Kuro Sennin Ape
Enter "kuroihoumonsha" as a password.

SAL-1000 Ape
Enter "rusagu-boisa" as a password.

Survival mode
Enter "sabaibaru" as a password. Alternately, capture all apes then catch Specter a second time.

Mesaru Gear mini-game
Enter "yumenokyouen" as a password. Alternately, successfully complete the game to unlock this item in Hobby Shop for 573 credits. Successfully complete this mini-game to win 1,000 Gaccha Chips and unlock Hard mode. To get the Croc cap and infinite items, rescue all twenty hostages.

Mesaru Gear cast in Movie 28 and two cinema files
Enter "futarinosune-ku" as a password.

Pigaru Ape
Enter "futarimenootoko" as a password.