Sentokun in Kamakura
At the beginning, the monk is too weak to prevail, so to build up his strength, he must ransack a peaceful coastal town and raze it to the ground. If you wish there were more browser games that let you throw houses at people, you may enjoy this.
The number in the upper-left is your strength. It increases whenever you collect coins, pick up objects, destroy things, or defeat enemies. The bad guys basically operate as gateways; initially, they outclass you, but once you work out your issues on the local scenery, you'll be strong enough to trounce them.
Steer your hero with the [Arrow Keys]. He moves like a tank with treads made of banana peels, but you'll adjust. The [Z] and the [X] keys are context-sensitive. When nothing special is going on, [Z] triggers a forward leap, which is a great way to get around quickly. [X] makes you do a somersault straight into the air, and while you're there, [Z] smashes you into the ground. That butt-stomp is useless for combat, but it's the perfect way to collect nearby coins.
Nearly every object in the game, including mountains and buildings, has a weight, which you can see by walking right up to it. Press [Z] to pick the item up, and then you can rotate around and press [X] to throw it. You can pick up things that are a little too heavy by jamming on the [Z] button a few times, but if you try that with something way too heavy, you'll hurt yourself. Just like in real life, exercise caution when uprooting a tree with your bare hands.
Combat works nearly the same as picking things up. Just walk into the bad guy, and hammer on [Z]. For extra antler monk wrestlemania fun, press [left] and [right] while you've got them in the air. If you get beaten, you probably need to whale on the landscape some more to power up. You can also weaken or crush your enemies by heaving a large enough object at them.
Analysis: Sentokun in Kamakura is a happy, carefree game. You can't hurt yourself very easily, except by blundering repeatedly into the same powerful enemy, and the main character feels heavy but nimble. The chorus of sugar-accelerated voices in the music suggest that the best way to play is with reckless abandon, leaving fragments of architecture and dramatic clouds of dust in your wake.
There's obviously some Katamari Damacy influence, in the sense that you start out helpless and grow strong by destroying everything you see, starting with the smallest objects and working your way up to the hugest. One important part of the formula is missing, however—the only sign that you're getting stronger is the emotionless number in the corner. Your character doesn't grow fatter or more muscular or anything, which detracts a bit from the joy of evolving into an unstoppable creature who can literally move mountains.
It's too bad there's only one level and not much challenge. Sentokun is almost like a tech demo, a colorful, flat-shaded playground for you to smash into shenanigans. If it ends too quickly, try combing the area for every last destructible object, in an effort to maximize your strength before the big showdown. You don't get anything special for doing that, of course, but this is the kind of game where you make your own moments. Like watching a once-mighty tree sail out over the horizon where you've thrown it, or beaning a humongous cowboy with a volcano. Those kinds of moments.
[Note: Press [Z] to pass the opening screen. The plot is probably nothing like what I described. It doesn't even look like a cowboy. More like a garbanzo bean with a temple on its head and antlers on the temple. It was easier to say "cowboy".]
[Update! More information on the actual source of the conflict between these two antlered behemoths can be found here. Thanks, JoseHeno!]