Tyrannomon

Tyrannomon is a Champion Digimon level Digimon, his name and design both come from  T-rex.

Digimon Virtual Pet
Tyrannomon can Digivovle from Agumon if you have 4 or more calls, train 5-15 times, if you over feed Agumon 3 or more times and if he has 0-4 sleep distrubences.

Digimon World 4
Tyrannomon is seen in two specific areas in Dry Land.

Digimon World DS
Tyrannomon digivolves from Goblimon, and can digivolve further into Triceramon depending on its stats. You can actually add Tyrannomon to your team relatively early in the game, as you can find a ton of them in the fourth area of the game, Sheer Valley.

Digimon World Dawn & Dusk
Tyrannomon is #87 in Digimon World Dawn and Dusk, and is a Technical-class Dragon species Digimon with a resistance to the Fire element and a weakness to the Earth element. Its basic stats are 168 HP, 168 MP, 112 Attack, 78 Defense, 80 Spirit, 75 Speed, and 33 Aptitude.

Digimon World Championship
Tyrannomon can Digivolve from Agumon by passing time, and can digivolve further to MetalGreymon with 10 battles, SkullGreymon with passing time, or MetalTyrannomon with 40 Machine AP and 8 battles.

Attack

 * Fire Blast/Blaze Blast (Fire Breath): Breathes out intense flames and burns the enemy.
 * Slash Claw (Slash Nail): Tears the opponent to ribbons with his powerful claws.
 * Dino Kick: Adds strength from his back to his front and lets out a kick.
 * Wild Buster: Rams into the enemy with heavy damage.