I don't own the Mini HB, so I'm going to work from the back of the Catfolk mini card itself.
It looks like they get:
+1 Natural Armor
+2 Str, +4 Dex, +2 Con, -2 Wis
Speed: 40 ft.
Low-Light Vision
The natural armor is fine. The unbalancing thing is their +4 Dex (and other ability bonuses, unless I got them wrong). Also, it should be noted that small size is usually a bonus, not a penalty.
Their speed is quite high. They shouldn't be that fast at 1st level.
Here's my work-up of an LA +0 Catfolk race that's based only on my misperception of their features from the back of the mini card
CATFOLK Medium Humanoid (Feline)
Str -2, Dex +2
Medium: As a Medium creature, catfolk gain no special bonuses or penalties.
Catfolk base land speed is 30 feet.
Low-Light Vision: A catfolk can see twice as far as a human in starlight, moonlight, torchlight, and similar conditions of poor illumination. She retains the ability to distinguish color and detail under these conditions.
Fur: A catfolk's skin is thicker than a human's, and covered in fur. This grants them a +1 natural armor bonus to AC, and they also gain a +4 circumstance bonus to Fortitude saves to avoid subdual damage from a cold environment.
Heightend Senses: +2 racial bonus on Listen, Search, and Spot checks. A catfolk who merely passes within 5 feet of a secret or concealed door is entitled to a Search check to notice it as if she were actively looking for it.
Automatic Language: Common. Bonus Languages: Draconic, Elven, Gnoll, Gnome, Goblin, Orc, and Sylvan.
Favored Class: Ranger. A multiclass catfolk's ranger class does not count when determining whether she takes an experience point penalty for multiclassing.
Special: Catfolk can take a special four-level Racial Prestige Class, called Catfolk Paragon. (As a PrC, levels from this racial class cannot cause XP loss due to multiclassing.)
PARAGON CATFOLK PRESTIGE CLASS
HD: d6
Requirements:
Race: Catfolk
Class Skills: Climb (Str), Concentration (Con), Craft (Int), Handle Animal (Cha), Heal (Wis), Hide (Dex), Jump (Str), Knowledge (dungeoneering) (Int), Knowledge (geography) (Int), Knowledge (nature) (Int), Listen (Wis), Move Silently (Dex), Profession (Wis), Ride (Dex), Search (Int), Spot (Wis), Survival (Wis), Swim (Str), and Use Rope (Dex).
Skill Points: 4 + Int bonus
Code:
[u]Lev BAB Ft/Rf/Wi Special Abilities[/u]
1 +1 +0/+2/+2 Jaguar Scent, Fur +2
2 +2 +0/+3/+3 Panther Bite, Nine Lives
3 +3 +1/+3/+3 Cheetah Stride, Fur +3
4 +4 +1/+4/+4 Tiger Pounce, Dexterity +2
Class Abilities:
- Weapon and Armor Proficiency: Paragon catfolk are proficient with all simple weapons and with light armor.
- Fur (Ex): The indicated bonus replaces the catfolk's racial natural armor bonus.
- Jaguar Scent (Ex): The catfolk's senses grow sensitive enough to grant her scent. A catfolk can detect opponents by scent within 30 feet. If the opponent is upwind, the range increases to 60 feet; if downwind, it drops to 15 feet. Strong scents, such as smoke or rotting garbage, can be detected at twice the ranges noted above. Overpowering scents, such as skunk musk or troglodyte stench, can be detected at triple normal range. When a catfolk detects a scent, the exact location of the source is not revealed -- only its presence somewhere within range. The catfolk can take a move action to note the direction of the scent. Whenever the catfolk comes within 5 feet of the source, it pinpoints the source's location (though the source still has full concealment). Scent may also grant the catfolk a +4 circumstance bonus to tracking checks.
- Panther Bite[ (Ex): The catfolk gains a Bite attack as a secondary natural attack (-5, 1d6+Str bonus damage).
- Nine Lives (Ex): The catfolk gains a +4 bonus to all Fortitude saves against [Death] effects.
- Cheetah Stride (Ex): The catfolk's light, quick stride grants her +10 ft. movement and a +4 racial bonus to Move Silently checks.
- Tiger Pounce (Ex): When weilding only Light weapons, a catfolk can make a full attack at the end of a charge.
- Dexterity: The catfolk gains these bonus points as if through level advancement.
This is just a quick first attempt. EDIT: with better formatting.
-- N