One of them comes bundled with the PSP game. Every package includes a LBX AX-00 model, a prototype of Achilles, the LBX used by Ban the main character.
Prototype Achilles is on the left. The final design of Achilles is on the right. (Does it remind anyone of White Knight Chronicles?)
Even though The Little Battlers includes a model kit, the game is priced like an average PSP game. The Little Battlers will retail for 5,980 yen ($73) in Japan when it comes out on March 17.