The way the review algorithm works right now, you need at least two specialists for sliders that are important for your genre, so it’s impossible to get in the garage, and you can’t get a perfect small game as you can not assign specialists for those. Apart from that, the requirements for a 10/10 game are the same as for a 9.75/10.
Also note that even if you fulfill all requirements, a perfect game is not guaranteed. Since every one of the four scores has a probability of 25% to be lowered by 1 point, the probability to hit 10/10 with a qualified game is only a little above 30%.