Quake

1. Bind mouse-look. Quake ships with it disabled—hit tilde, type +mlook in the console, or add it to autoexec.cfg. Vertical aiming is mandatory past Easy; keyboard-only turning gets you killed.

2. Strafe-jump from the start. Hold forward + strafe, jump, swing the mouse in the strafe direction mid-air. Each successive jump builds speed. Movement tech is Quake—bunnyhopping collapses 5-minute levels into 90 seconds.

3. Grab the shotgun in E1M1’s first side room, then find the nailgun. The axe is desperation melee only. Shotgun is bread-and-butter; nailgun shreds Ogres and Knights. Save rockets for Shamblers and Vores.

4. Shoot suspicious wall textures. id hid secrets behind crate panels, misaligned stones, torch alcoves. Quad Damage, Pentagram of Protection, Ring of Shadows—almost always off the critical path. Listen for the power-up hum.

5. Difficulty scales enemy count and placement, not just damage. Nightmare adds respawning enemies—skip it until you’ve memorized layouts. Hard is the intended experience for mouse-look players.

6. Quicksave obsessively (F6), quickload without shame (F9). No regenerating health, no checkpoints. Spawn-telefragging Fiends will kill you. Rocket-jump splash damage will kill you. Save before every major fight.

7. Memorize the weapon ladder: axe → shotgun → double-barrel → nailgun → super nailgun → grenade launcher → rocket launcher → Thunderbolt. Number keys 1–8. Weapon switching has no delay—rocket-jump (RL at your feet mid-jump), swap to nailgun mid-air for aerial combat.

• Strafe-jumping compounds velocity — hold forward + strafe, jump, swing the mouse in the strafe direction mid-air, repeat. Each jump adds speed if timed correctly; speedrunners chain this through entire levels. Practice on straight hallways before attempting combat movement.

• Rocket-jump for vertical shortcuts — aim at your feet, fire, jump simultaneously. Costs ~20–40 health depending on armor but opens routes the designers half-expected you to find. Quad Damage rocket-jumps are instant suicide; drop the powerup first or accept the telefrag when you respawn.

• Axe the Zombies or waste ammo forever — shooting them down just triggers the stand-up animation after a few seconds. Two axe hits to the head gibs them permanently. Grenades work but you’ll burn through cells trying to Thunderbolt them.

• Bunny-hop in water to move faster than swimming — tap jump repeatedly while moving forward in shallow liquid. You’ll skip along the surface at run speed instead of the slow swim crawl. Deep water forces swimming; look for ledges.

• Quad Damage doesn’t stack with difficulty damage scaling — Nightmare enemies already take reduced damage across the board. Quad helps but won’t one-shot Shamblers the way it does on Hard. Save it for Vore/Shambler packs, not trash mobs.

• Grenades bounce predictably off angled surfaces — bank them around corners into monster closets before entering. The arc is consistent; learn one angle and you can pre-fire spawns. Ogres do this to you — turn their trick against Scrags camping ceilings.

• Lightning Gun in water kills you instantly — the discharge hits everything in the liquid volume, including the player. Shamblers are immune to electricity; don’t waste cells. Thunderbolt is for Vores and crowd control on dry ground.

• Difficulty changes enemy count and placement, not just damage — Easy omits entire spawn triggers. Nightmare adds respawning (20-second timer per monster). Hard is the “intended” balance for routing secrets and resource management.

E1M3: The Necropolis — Silver Key Door Confusion

The silver key door sits at the end of a long hallway, but new players circle the starting courtyard for twenty minutes looking for the key itself. The silver key is above you — ride the coffin-lift in the crypt room (marked by candles and zombie ambush) all the way to the top, then turn around. The key sits on a ledge behind the lift’s highest position. Jump from the lift platform to the ledge. If you ride it down again, you wait through the slow ascent a second time.

E1M4: The Grisly Grotto — Exit Portal No-Show

You’ve hit both rune buttons, cleared the Ogre gauntlet, but the exit portal never materializes. The portal requires three actions: silver key door (opens the water route), the two floor runes (drain the central pool), and the shootable button hidden underwater in the drained pool. That button is a brown square on the floor of the now-empty basin. Shoot it with any weapon. Portal appears in the side alcove.

E2M6: The Dismal Oubliette — Gold Key Drowning Loop

The gold key sits at the bottom of a deep water shaft filled with Rotfish. Players grab it, then drown trying to surface because the exit route isn’t the way you came in. After taking the key, swim down and forward through the submerged tunnel — there’s a second passage that angles up to an air pocket and the gold door. Grenades clear the Rotfish faster than underwater Nailgun spam.

Chthon (E1M7) — Lava Arena Stalemate

Chthon cannot be killed with conventional weapons; players waste all their cells on the Thunderbolt while he regenerates in lava. The kill is environmental: four lightning-bolt discharge columns ring the arena. Lure Chthon between any two columns, then shoot the glowing button on the wall nearest that pair. The electrical discharge deals massive damage. Two full discharges kill him. The buttons reset after ~15 seconds. Don’t stand in the discharge path.

Shub-Niggurath (END) — Shooting the Brain

The final boss cannot be damaged by weapons. Players empty their inventory into the hanging brain-mass while Shub spawns endless monsters. You must telefrag her: wait for Shub to move over one of the four teleporter pads on the arena floor, then jump into the corresponding spike-tunnel teleporter. You’ll materialize inside her hitbox for an instant-kill. The teleporters are one-way; trial-and-error works, but watching her position saves time.