Google.Co.Uk 

When Signing Up For TPPA You Can Obtain 1 Starters Pokemon Below Are The Pokemon You Can Obtain And A Little Information On Them. 

Serebii.Net 

Generation 1 Starters - Bulbasaur - *Grass Type/Poison* - Weak Against Fire Types - Strong Against Water Types. 

Charmander - *Fire Type* - Weak  Against Water Types - Strong Against Grass Types.

Squirtle - *Water Type* - Weak Against Grass Types - Strong Against Fire Types. 

Serebii.Net 

Generation 2 Starters -  Chikorita - *Grass Type* - Weak Against Fire Types - Strong Against Water Types.

Cyndaquil - *Fire Type* - Weak Against Water Types - Strong Against Grass Types.

Totodile - *Water Type* - Weak Against Grass Types - Strong Against Fire Types.

Serebii.Net 

Generation 3 Starters - Treecko - *Grass Type* - Weak Against Fire Types - Strong Against Water Types. 

Torchic - *Fire Type* - Weak Against Water Types - Strong Against Grass Types.

Mudkip - *Water Type* - Weak Against Grass Types - Strong Against Fire Types.

Google.Co.Uk  

Generation 4 Starters - Turtwig - *Grass Type* - Weak Against Fire Types - Strong Against Water Types.

Chimchar - *Fire Type* - Weak Against Water Types - Strong Against Grass Types.

Piplup - *Water Type* - Weak Against Grass Types - Strong Against Fire Types.