Alexandre, quick editing comment: lose is spelled “loose” several times through the document.
I love how useful this can be at a mere two pages. The one-roll for attack and defense is perfect.
I second Tim's praise for this game (Hi Tim it's Brian C.!). We're using Die A Hundred Times to play through my Call of Cthulhu scenario "Canned Articles," and it's the perfect game engine for that purpose. Die A Hundred Times is now my go-to choice for d100 gaming. It's a lean, sleek system that gets the job done and then gets out of the way to let play happen. It's terrific!