Cool beans. When I got home from work today I blew through the game.
It took a couple tries to find the sweet spot to the left but I found it. Just a word of advice: if you move all the way to the left to the cliff wall you're dogmeat.
The end boss is a world-class pussy. Arm yourself with the dynamite weapon, turn on the Turbo switches, and let him have it.
I seem to remember a thread about this a long time ago, but I had to mention it again... The ending "story" dialogue flashes on the screen SO FAST you barely get a chance to read the first sentence before it's gone. This also has been covered, but is the ending in Arcade Mode any different?