This is an old-school game, so you have limited lives, but the game is generous, and if you run out of lives, you can restart from a checkpoint, many of which aren't far from actual bosses.Once you get the hang of it, you can bounce from foe to foe and move through stages with great ease, including skipping large segments of levels if you kick off the right enemy.More importantly, you get items that change how you refill MP, including a slow regeneration over time and a much better "gain MP back every time you kill an enemy" chip, which completely changes the gameplay.Bosses can go down quickly if you get their patterns down; I chunked several boss' health in under 30 seconds.It's a lot of fun and masterfully evokes the nostalgia of the era, but it's exactly what you get on the tin, and without that nostalgia, it might not necessarily stand out as anything but a fun platformer that you can finish in one or two sittings."