the controls arent to blame for the spacebar response time. Most likely it's just that you're pressing space too late, since the game is in perspective you have to jump a bit before you reach the edge of the platform. Otherwise, it must be your keyboard or computer, because it works fine for most people.
i ran into a similar glitch as whatIgot did. I got an explode and then immediately after it said my current word was explode and i couldnt type without it registering as a miss, 3/5
Achievements: Hobbit--View instructions & credits. Dwarf--Load up your game 3 times. Bomberman--Lose 3 times. Red Dragon--Lvl. 17 complete. Devil--Lvl. 18 complete. Angel--Research everything.--- start lvl 6 (2) kill the first wave with your tower (3) send hobbits like crazy (4) you just made 6000 xp in 2 minutes (keep these alive)