I'm not a big fan of this anime but I decided to play this game since one of my closest friends is a giant fan of the show and ships hardcore saitama and genos. I basically just got this game so she could play it later on so my opinion may not be from your intended audience but I must say it was pretty enjoyable. I'm not sure if this was your intention or not but I was having such a good laugh with the way genos "relieves" himself. I just found it so funny! I'll play it some more times before my friend does just for the sake of it but this was pretty nicely done! Kudos to you!
(sorry if this comment doesn't really make sense. It's 5 am as I'm typing this....insomnia is kind of a bitch)