For ALL Basic games, you must have MirageOS v1.2 or higher. (I don't think there is any more...). A Lot of authors put their basic games in Mirage, and if you have Mirage v1.1, your calculator will freeze up and crash. That is not the author's fault. That is your fault for not getting the newer version. Mirage v1.1 has a screen in the beginning that looks like this: Now sorting...please wait (er something like that) If that doesn't show up, you have the wrong version.

Screenshots For Jon Wong
Kamakazi! v3.0