Anilrgowda

Defeating Frog Deadite Boss:
When the Frog Deadite goes to impale you with its tail, move out of the way and it will get it stuck in the ground. Cut it with the chain saw so that the Frog Deadite opens its mouth. When the mouth is open, fire a rocket into it. It should take five or six rockets to bring the Boss down.

Defeating Rhineheart:
When Rhineheart comes at you in the final level, immediately start firing your missile gun. During some periods he will shoot ground level blood lines; just dodge them. Other times he will shoot full circle blood waves; jump those. If he gets close enough to you, he will pick you up and start punching to severely drain your life. When he gets low on health he will run to the altar to recharge. If he recharges you must repeat the process all over until he is dead. Face the altar when he picks up the book with his powers to recharge. Kick Sam towards the book, unhooking Rhineheart from recharging. Repeat the missile launching and dodging the blood lines and blood waves. Remember to stay away from him. Repeat kicking Sam towards the book. When he is low enough on health, he will slowly walk back to the altar. This should give you enough time to kill him.

Hidden Extra 1:
When you first start in the asylum, you can see the Hidden Extra through the window in the next room over. Go down the hall, get the gun, and kill the Deadite. Go back and target the window. Shoot it out and you can climb through and get it.

Hidden Extra 12:
In the Shipyard after getting the rocket launcher and after the save point, you will encounter a group of fat Deadites; the handgun is best for killing them. After killing them, enter the blue crate on the left to find the Hidden Extra.

Hidden Extra 14:
On your way to getting the second spirit down the stairs, kill the big Deadite. Go back to before where you get the spirit and down by the semi containers to find the Hidden Extra. Note: Beware of a Deadite ambush.

Hidden Extra 15:
Posses Sam in the swamp. You will have to again ride the Deadite. Around the swap are little mounds of trash. Get on the Deadite, go out of the fence, and smash the trash on your left to find the Hidden Extra.

Hidden Extra 16:
After you open the gate after defeating the big Deadite as Ash, go into the swamp. Go under the bridge, and past the ladder on the right is a cave which you must open with the rocket launcher to find the Hidden Extra.

Hidden Extra 17:
When you enter the town, go down the main street. On the right is an alley. Go down it to find the Hidden Extra.

Hidden Extra 18:
In the area where Sam needs to open the warehouse door, walk around the building to find the Hidden Extra.

Hidden Extra 19:
At the start of the Alternate Demontion, turn right and follow the path to find the Hidden Extra.

Hidden Extra 2:
In The Asylum, where you have to shoot the flying furniture then get on the elevator, there are two bathrooms that you can go into and open the stall doors. Open the doors to find the Hidden Extra.

Hidden Extra 20:
When you finish the arena, go around the walkway to find the Hidden Extra.

Hidden Extra 3:
After you electrocute the man on the table and are heading down the stairs, there will be an open door on your right. Go in the door to find the Hidden Extra.

Hidden Extra 4:
Get Sam and enter the graveyard. After the first group of Deadites come, there is a break in the fence. You can go into the water, and far back is the Hidden Extra.

Hidden Extra 5:
After the graveyard save point, when you hear the loud footsteps just before you learn to take possession of Sam, on your left is a stream. Go into it and back a little way to find the Hidden Extra.

Hidden Extra 6:
After you change into Sam for the second time (after feeding the souls to the Soul Eater), go down into the cave. Go into the stream. The current will take you to the Hidden Extra, but Sam will get killed on spikes.

Hidden Extra 7:
In the Mine level on the platform where the second spirit you have to collect is found, go to the right (in the opposite direction of the egg) to find the Hidden Extra