this is pretty much a tutorial level just shoo straight over the water at full power till you gun up to about the 2 o'clock position and adjust accordingly due to results of your shots
this level is also pretty straight forward, 'cept you have another enemy on top of a hill. Thats not much of a problem, just adjust your gun to a little under the 1'0 clock postion and fire away
Notes: Knock backs: if an enemy (or you) is hit directly by a projectile or is caught in an explosion they will be knocked back, if u are able to knock them into the water it is an instant KO even if their health is full Upgrades: for the first few levels concentrate on getting your raft upgraded as it is better than buying ammo
now things get harder, the hippo in the middle of the field will block you low, fast shots so you'll have to aim higher and lower your power a bit, if you can hit the first thug hard enough he will knock his buddy out of their boat
This is hard due to the fact that one of your eneies is tucked behind the jet ski, take out the first guy with shot(s) to the face then launch a grenade into the third guy, the grenade will hope fully land near the end of the docks and explode knocking the baby out of his intertube and doing some serious damage to the last guy, take him out with a tennis ball
Note: if you have been following this walkthrough you should now have enough to buy the last raft upgrade, do it. Then feel free to use the rest for ammo