Turn on the console:
Zeno Clash: Cheat Codes, Console Commands Free Download
 1. Go to the Disk with the game installed: \ Games \ Zeno Clash \ zenozoik \ cfg \
 2. Next, open config_default.cfg in notepad
 3. Add 2 lines:
 con_enable “1”
 bind “~” “sv_cheats 1”
 4. Don’t touch anything else and save
 5. Launch the game, press the tilde “~” commands in the console are identical to Half-Life, Half-Life 2, Counter Strike Source.
eg:
 god – God mode (server side only)
 give – Get a weapon or special item (see the list below)
 buddha – Decreases your health
 hurtme # – Will hurt the player (# – amount of damage)
 impulse 101 – All weapons
 impulse 82 – get jeep
 notarget – Player becomes hidden to NPCs
 noclip – walking through walls (server side only)
 maps – list of all levels
 map | map name | – Loads the specified map (see list below)
 developer # – developer mode to on / off / verbose (0-off, 1-on, 2-verbose)
 +mlook – enable “mouse look”
 hud_quickhelp / text? 1 – show sight
 viewmodel_fov # – Sets the size of the weapon you are carrying (54, default)
 exec – execute a script file
 cl_drawhud 1 – on hud display
 cl_enablehud 1 – on hud display
 cl_showfps 1 – show fps
 npc_create – Creates an NPC (works in worlds that have NPCs)
 picker – Toggles ‘picker’ mode.
 sv_gravity # – gravity #
 sv_friction # – Set world friction to #
 sv_bounce # – Sets the bounce multiplier for physically simulated object collisions
 sv_maxvelocity # – Set the maximum speed of any moving object towards #
 air_density # – Changes the air density to #
 dsp_explosion_effect_duration # – Set the duration of the confusion / ear-ringing effect to #
 PS
 I haven’t tested all the commands, but GOD, impulse 101 works.