Tony Hawk's Underground Cheats (GameCube)

Successfully complete story mode on the sick difficulty setting to unlock T.H.U.D.
Note: In the Neversoft FMV sequence at the start of the game, the boy that gets
eaten is Eric. The thing that pops out to eat him is T.H.U.D.

Successfully complete story mode on the beginner difficulty setting to unlock Iron Man.

From the large hotel you start at in the Hawaii level, follow the main road all the way
around in either direction. When you find the strip of buildings that are opposite on the
map from the hotel, you will find a large tiki head. Alternately, go out the front doors
of the hotel and through the plaza all the way out the other side. Jump inside the tiki
head's mouth to find a secret area. Skate down the tunnel until the end and boneless into
the air to grab the "Tony Hawk 2" icon to unlock the Venice Beach level from Tony
Hawk's Pro Skater 2. Note: Think of the map as a square. If the beach is at
the bottom, the tiki head is on the top side of the map. It is much easier to get inside
the tiki head's mouth if you dismount your board first.

Get all 129 goals.

Get all 129 goals.

Successfully complete story mode twice or complete sick mode to view an alternate ending
sequence.

Select "Cheat Codes" at the options menu, then enter "noforce" as a code.
Alternately, get all 129 goals.

Select "Cheat Codes" at the options menu, then enter "letitslide" as a code.
Alternately, get all 129 goals.

In the Moscow level, find the place where there are a lot of tanks and a building that
reads "AEHNH". Stand in front of the building to the left. Line your self with the brown
ledge. Climb up it. Stand on the brown ledge that you are about to grind on. If you are
in the correct location, to your left should be a tree and straight ahead should be a big
red building palace-looking thing. Grind that ledge and jump toward the previous viewed
window. You should go down a ramp. Where the ramp is located, is a ramp that goes up on
the right, revealing the "Tony Hawk 2" icon as you went down the ramp to unlock the
Hangar level from Tony Hawk's Pro Skater 2.

Find the Go-Kart. Drive the Go-Kart around until you find a huge ramp that goes over the
center of the level. Drive off it as fast as possible and you will clear a gap that gives
you 10,000 points.

Select "Cheat Codes" at the options menu, then enter "keepitsteady" as a code.
Alternately, get all 129 goals.

Do either a manual or a nose-manual, and press Left, Right, B to Spacewalk. This is useful
on missions where you can only manual, such as the one in Moscow with the reporters.

Go to the small building to the left of the cop car. Climb up the wire that is heading
towards the tall building. The tape is in between the gap of the building at the top.

Climb the hotel that you start at. Get to the roof and to the right of the pipe on the
right is the side of the building. Grind that ledge onto the wire to get the secret tape.

Collect six secret tapes to unlock the Bails 2 FMV sequence.

Successfully complete story mode on the normal difficulty setting to unlock Gene Simmons.

Get all 129 goals.

Find all gaps in the game to unlock the Pedestrians.

Collect nine secret tapes to unlock the Always Hard FMV sequence.

Successfully complete story mode to unlock the Hotter Than Hell level.

Get all 129 goals.

Get all 129 goals.

Start at the entrance of the stadium (where the parked trucks are located, and where you
get into the contest. From there, look at the tape. You should see it above the glass
dome behind the subway-like spline entrance. Go down left from here and wait for a
vehicle to drive out of the tunnel. Skitch it towards where you started from. Make sure
you are on the left side of the car. When you are about to pass the subway entrance
spline, get of the vehicle and spline the entrance from the side. This will launch you
across the dome into the secret tape.

Collect all the letters that spell K-I-S-S in the Hotter Than Hell level. This will unlock
the Kiss FMV sequence. Then, collect K-I-S-S again. This will start the Kiss Concert.

In the New Jersey level, cross the bridge, then get on top of the large building
immediately afterwards. Shimmy across the tall gate and pull yourself onto a ledge. There
will be a "Tony Hawk 2" icon on the ledge alongside a tall building that will unlock the
School 2 level from Tony Hawk's Pro Skater 2.

Create your own deck or get any pre-made one. Grind a lot with it by doing tailslides,
noseslides, boardslides, and lipslides. After grinding for so long, your board will wear
on the bottom and the picture will be all scratched up.

When you start, go down the street to the left of the worker with the jackhammer . At the
end of the street is a lit up billboard with a ladder. Climb the ladder, then jump and
grab the ledge. The tape is there for the taking.

Get all 129 goals.

While off your skateboard (walking), when you jump the first time, you can also jump a
second time while still in the air (if you keep tapping Jump). This is very helpful for
out of reach places. Note: You can only jump twice.

Collect three secret tapes to unlock the Bails 1 FMV sequence.

In story mode, after you complete the driving mission in New Jersey, go up to the car to
drive it.

Successfully complete "Slamma Jamma" in story mode to unlock Create-A-Deck mode.

After completing any goal that you had to use a car, you can find that car somewhere in
that level as well.

Go under the bridge on the side that allows you to do so. The tape will be floating there
for your taking.

Go to the vert ramp and get off your board. Climb up onto the lights hanging from the
ceiling and walk over to the big four-sided television screen. Walk into it and the glass
should break. The secret tape will be inside.

Select "Cheat Codes" at the options menu, then enter "digivid" as a code to unlock
all FMV sequences.

Riding switch is the opposite of what your rider is used to. If you have a regular stance
rider, then switch would be the goofy stance for them, and vice versa. When you do switch
tricks, you get more points than what you would normally get for doing it in regular/goofy
form. For example, doing a Kickflip (regular) results in 100 points, but a Switch Kickflip
gets 120 points. It makes a larger difference on bigger tricks such as specials.