katakana - Can an English video game be translated into Japanese without kanji?

I want to get my game translated from English to Japanese. Can it be done without the use of kanji (i.e. using only hiragana and katakana)?

Kanji characters seem that they will be too small to be readable at the size of the text in my mobile game. And it's a nightmare with fonts too. I want to know how it usually is in Japanese video games and if what I want can be done.