Sentret and Furret (HGSS)

Sentret is the Johto counterpart of Rattata. It's based on squirrel.

Location: Route 29

Stats and evolution
In its Sentret stage, it's extremely slow and has decent Attack and Special Defense. In its evolution, receives a great increase in Speed, also a good increase in HP, and a decent increase in its physical stats. Its increase in special stats is insignificant.

It evolves into Furret at Level 15.

Moves, Abilities and Typing
Sentret learns almost nothing interesting by level-up. Slam, whose it gets after evolving, at Level 28, is its strongest option, though has only 75% accuracy. At Level 36, it gets Sucker Punch, a coverage option, but it's too unreliable in-game.

Otherwise, it gets Amnesia at Level 42, as well Baton Pass at Level 46. Though Baton Pass is almost never seen in-game, can be a nice combo. Me First steals the foe's move with 50% more power. However, you'll probably only learn these moves during Kanto adventure.

On other hand, Furret can get a few nice TMs. Headbutt is quite powerful for the point of the game that is obtained, has decent chances of flinching and has STAB. U-Turn is also pretty nice. Otherwise, can get Dig, Iron Tail, Return, Shadow Claw, Secret Power and Strength. However, I only recommend Shadow Claw and Return. Blizzard, Surf, Focus Blast, Charge Beam and Shadow Ball are coverage options, but are special.

After Elite Four, it can get Aqua Tail, obtained with 40 Battle.Points. Also can get the three elemental punches (Fire, Ice and Thunder), each of them obtained with 64 Battle Points. Last Resort is an option, but the effect is too unpractical.

Sentret can have two abilities: Run Away and Keen Eye. Run Away enables escaping from wild battles without fail, while Keen Eye prevents loss of accuracy. Both of them are pretty useless, though Run Way can be useful in Sentret stage.

Normal is a decent typing, as the only weakness is Fighting.

Important battles
Being a Normal-type, it has a decent matchup against all members, except Cianwood Gym and Bruno in Elite Four.

With Shadow Claw, can work greatly against the fourth Gym, as well Will in Elite Four, Saffron Gym, and rival's Gengar and Alakazam.

Conclusion
Furret is inferior than Raticate, but also can be decent if used correctly.

Rating: 40%.