All remotes + 99 lives:      M758FQRW3J58FQRW4!

All remotes + 127 lives:     NJ4N>P2S274N>P2S28

All remotes:                 MX68KQ>Y3S68KQ>YW8

First gate opened:           DPXMDGVXCVLCG5WFL

Second gate opened:          C2G57FLRDQJV7FBTCN

Third gate opened:           FFY>SJB5D5HCVJL8DV

Fourth gate opened:          GFT>/M9BH56FBLMF2B

Hints:

Asteroids Shortcut:
1. Go to Rocket channel (pain in the asteroids).
2. Hit the switch and walk across to the next Asteroid
3. Play the game until you get to the moving platforms.
4. Just to the left of it jump off and you will land on another 
Asteroid.

Beat Mecha Rez:
     Whenever  Mecha  Rez  jumps  on  a building, use the tail whip to
destroy the building. Mecha Rez will fall and lose one energy bar.

Extra Life In "Out Of Toon":
     To  get  a extra life, turn into a rabbit and go right behint the
starting hole. Go inside the log and you will find a extra life

Extra Life in Tooned Out:
     In  Tooned  Out,  go  to the rabbit hole and jump in it. You will
appear  as a rabbit in a different level. Go past the first hunter. Go
up  the log and to the right side you should see a ledge. Jump up onto
it and go past the two traps. There you will find an extra life.

Get Into the Lion's Mouth without 26 Remotes:
     After  you  beat  Mecharez,  a  gate  in  the overworld opens. Go
through  the gate, and you will see there are two ways you can go. You
are not supposed to go to the way on the left because it says you need
26 remotes to go to it.

Hidden Remote:
     When  in  the  second toon level go to the castle don't go inside
but  go  to  the  side  of the castle and you should see a small ledge
carefully guide Gex across it. You should find the hidden remote about
half way behind the castle.

Hidden Room in Scream TV:
     Once  you  begin  the second scream tv level go down the ramp you
begin  on,  and  go through the door. After you do this you will be in
another room. Go through the door that has a a little green around it.
When  you  are in the next room go to your right where the pumpkin is.
After you destroy it walk forward and you will walk through the wall.

Mess with Gex's costumes:
     In  any  level  that has Gex change appearence (i.e. Out of Tune)
hit  a check point. Then go to any area in the level where Gex changes
appearence.  Lose  1 live. When Gex appears at the check point he will
be  wearing the wrong clothes for the area (i.e. The Rabbit Costume in
The Desert Area)

Reaching the Titanic level:
     Go  to  the first main room and approach the arch. Climb the wall
to reach the roof of the arch. Once on top, look for a floating square
and jump on to ride to the Titanic TV screen.

Get under the Titanic:
     Get  under one of the metal doors in the Titanic level when it is
coming down to get under the Titanic.