1. Niba wumva urusaku ruva mu ihuriweho, mbere ya byose, ni ngombwa kubona aho urusaku rubaho. Hariho ibice byinshi byimuka bishobora gutanga urusaku, cyangwa ibice bimwe bizunguruka birashobora guhura nibice bidazunguruka. Niba urusaku rwinshi rwemejwe, kubyara birashobora kwangirika kandi ko bigomba gusimburwa.
2. Kuberako imikorere ikora iganisha kumpande zombi zuruhande rwimbere
3. Hub byemejwe, birakenewe rero kwemeza uburyo bwiza nibikoresho bikwiye mubibazo byose. Mugihe cyo kubika, gutwara no kwishyiriraho, ibice bigize kubyara ntibizangirika. Ibyifuzo bimwe bisaba igitutu kinini, nibikoresho bidasanzwe birakenewe. Witondere kwerekeza ku mabwiriza yo gukora imodoka.