Contra

1. Enter the Konami Code at the title screen. Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start grants 30 lives instead of the default 3. Contra is balanced around this — vanilla 3-life runs are brutally difficult.

2. Learn the weapon hierarchy immediately. Spread (S) is king for crowd control and boss damage. Machine Gun (M) offers rapid fire but weak per-shot damage. Laser (L) pierces but locks you into narrow firing lanes. Fire Ball (F) creates arcing projectiles—situational at best. Grab Spread and keep it.

3. Destroy the pill-box sensors in Stage 1 before they spawn soldiers. The rotating red sensors on the bunkers trigger infinite enemy waves. Shoot them first, clear the area, then advance. This applies to all ground-level defense structures.

4. Hug the bottom of the screen in base stages (2, 4). Vertical-scrolling levels scroll automatically. Enemies spawn ahead of the camera. Staying low gives you maximum reaction time and prevents off-screen deaths from ceiling turrets.

5. Use the d-pad for 8-directional aiming while jumping. You can fire diagonally up or down mid-air. Critical for Stage 3 (Waterfall) where you’re jumping between platforms and need to clear enemies above and below simultaneously.

6. Die intentionally to reposition continues. Continues restart you at the beginning of the current stage. If you reach a boss with 1 life and no Spread, dying and continuing gives you a fresh weapon-spawn cycle.

7. Practice the Stage 8 alien heart pattern immediately after clearing Stage 1. The final boss ends more runs than everything prior combined. Its pattern is learnable but unforgiving—TASVideos and speedrun.com have frame-by-frame breakdowns.

• Spread Gun dominates; Laser pierces. Spread is consensus best for crowd control and boss damage, but Laser pierces multiple enemies and owns tight corridors (Stages 2, 4). Machine Gun is a trap — its spread pattern ruins precision.

• Memorize spawn triggers. Most ground troops and turrets appear at fixed scroll positions. Learn the timing, prefire the spawn point. Blind rushing into new screen space gets you killed; controlled advancement lets you shoot before they materialize.

• Destroy base sensors immediately. Wall-mounted alarm panels (Stages 2, 4) summon infinite reinforcements. One shot disables each sensor. Ignore them and you fight an endless wave while navigating traps.

• Jump the final boss’s bullets; don’t thread them. The heart chamber fires spreads that look gapped. The gaps collapse as the pattern travels. Jumping gives you control and a better return-fire angle. Crouching only works for low sweeps.

• Die strategically to reset your weapon. Stuck with the default gun deep in a stage? Intentional death on a safe enemy respawns you with the peashooter but also resets item drops. Better to sacrifice one life early than limp through underpowered.

• The Konami Code (30 lives) isn’t just for beginners. ↑ ↑ ↓ ↓ ← → ← → B A at the title screen is the game’s most famous input for good reason. Experienced players use it to practice later stages without grinding the early loops.

Stage 3: Waterfall Base entrance The vertical-scrolling opener of the Waterfall stage kills more first-timers than any other sequence in the game. Turrets spawn from fixed positions on both walls while the screen auto-scrolls upward. Hug the left wall and fire diagonally up-right. The spawn pattern favors right-side threats—left-wall positioning buys you reaction time. Spread Gun trivializes this if you carried it from Stage 2, but the default rifle works if you pre-fire the known spawn points: the second and fourth alcoves on the right wall always produce turrets.

Stage 4: Hangar boss (twin cannons) The dual rotating cannons wreck players who stand-and-shoot from the center platform. The cannons fire in alternating arcs that create a crossfire pattern. Position on the far left or far right platform and jump the shots in rhythm—left cannon fires, jump, land, right cannon fires, jump, land. Spread Gun ends this in seconds if you aim at the base where both cannons meet. Machine Gun works nearly as well. Laser is a trap—the narrow beam can’t cover both targets.

Stage 5: Snow Field snipers The white-camouflaged soldiers in the outdoor snow section blend into the background and fire from elevation. Players walk into their shots because they don’t catch the muzzle flash in time. Watch for movement at the top third of the screen. These enemies spawn at fixed X-coordinates when you cross invisible triggers. Memorize the three spawn points—left tree line, center ridge, right bunker—and pre-fire as you advance. Crouching doesn’t help; their shots track low.

Stage 8: Alien Heart final phase The heart’s second form spawns crawling xenomorphs from the walls while firing spread shots. Players panic and retreat into the spawns. Stay mobile in the center third of the room, jumping in a figure-eight pattern. The spawns emerge at fixed intervals—count to three between waves. Spread Gun on the heart itself, ignore the crawlers unless they’re directly in your jump path. The fight has a damage cap per cycle; you can’t burn it faster than the script allows.