thanks for the guide. The 3-4 hours is a tad optimistic. The one achievement literally requires you to play 3 hours without quiting (or the game crashing). I would feel more comfortable at 4-6 hours to be honest. With some skill, the other achievements can be done in 2 hours. Then you still need the other 3 hour one. If you could do the entire game in one sitting, without it crashing, the 3-4 is accurate.
Also, you should mention the hiding in the corner trick. It is very helpful as no boss and only a few types of enemies can kill you there. This is especially helpful for the 5 minute achievement without dying. Once you get to the boss just hide in the top right corner. You can waste the rest of the clock doing this. Another tip for 5 min is to only kill one enemy in the wave, then make the highest enemy manic, which slows him down, and let him slowly move off screen. New waves don't spawn until the last wave has been gone. This will kill even more time.
The top corner trick is also useful for the 5 bosses and 300k score. No boss can harm you there and enemies that cabn hit you do not start spawning until after the third boss.
Last edited by Arsenic 17; 10-14-2012 at 05:22 PM.