From a flippant comment by Ian Belcher
Doctor Kama’Lu’s island exists across multiple dimensions and, wherever he finds himself, he unleashes his ape-based creations from Ro-Daddio to, unfortunately, the Face-Raping Mecha Gibbons or FRMG’s. Cobbled together from decommissioned sex-bots these tree-swinging sentinels were originally designed for rapid movement and patrol of the jungles of Doctor Kama’Lu’s jungle home but, unfortunately, their old instincts still hold true, humiliatingly enough for their victims.

Face-Raping Mecha Gibbon Level 5 Skirmisher
Small Arborial Animate (robot) XP 200
HP 64, Bloodied 32
Initiative +7
Perception +8 (Darkvision)
AC 21, Fortitude 17, Reflex 18, Will 16
Speed 3, Swing 12 (Trees, skeletal buildings or other frameworks allow the mecha gibbon to move at speed)
Immune: Poison; Resist: 10 electricity, Radiation
Standard Actions
Swing-By Smack (Physical) – At Will
Hurtling past on one arm the mechanical ape extends one massive metallic fist and smashes into you on its way past.
Attack: Melee 1 (one creature) +8 vs. AC.
Hit: 2d6+7 physical damage during a swinging move, using both move and standard actions, the attack may not take place on the first or last square of movement. AC is reduced by -2 until the mecha gibbon’s next turn.
Ape-Arm Beatdown (Physical) – At Will
With a hooting cry the mecha gibbon descends at speed, smashing down with both of its big metal fists.
Attack Melee 1 (one creature) +8 vs AC
Hit: 1d8+7 physical damage.
Triggered Actions
Face-Rape – At Will
The damage it has taken has booted up some of its… old programming. A vibrating proboscis appears from the mecha-gibbon’s crotch plate and looms large in your view as it swings towards you with a lustful gleam in its glowing red eyes.
Trigger: When bloodied the mecha gibbon gains access to this attack.
Attack: Melee 1 (one creature) +6 vs Fortitude, +2 bonus to further attacks of the same kind following the first successful attack.
Hit: 1d6+6 damage and target is Restrained.
STR 20 +7 Dex 16+5 Wis 12 (+3)
Con 16 (+5) Int 6 (+0) Cha 7 (+0)

NB:
Horrifyingly, there are robot gibbons.