Mullet MadJack: Achievements Guide for 100% and S-Rank Clears

If you want 100% in Mullet MadJack, treat it as a skill test, not a grind. On Xbox the game has 48 achievements worth 1,000 Gamerscore, and a full completion lands around 8 to 10 hours for most players. The list is short, but it is not “finish the story and collect rewards.” A large slice of it is tied to how cleanly you play: chapter performance, executions, weapon use, and repeated clears all count.

The short version

• 48 achievements, 1,000 Gamerscore on Xbox — no giant collectible sweeps, no endgame slog.
• ~8–10 hours for 100% if your execution holds up; longer if you need extra runs to stabilize.
• Plan around S-RANK! early — it pays 30 Gamerscore for an S-rank in any chapter, so you only have to nail it once.
• Route: one clean campaign clear first → note which chapter you handle best → do focused cleanup runs, one target at a time.

What the achievement list is really testing

The achievements lean into the same arcade pressure that defines the game: fast decisions, aggressive movement, and squeezing value out of whatever the run hands you. That is why the pool is broader than a pure story checklist. In practice it splits into three jobs:

• Story unlocks you get just by finishing the campaign.
• System achievements tied to weapons, upgrades, executions, and enemy-specific actions.
• Performance achievements that ask for a clean enough clear to hit a rank or a repeat-run condition.

That split is good news. 100% is not locked behind a massive grind — the hard part is execution. If you play consistently, the list moves fast. If you are still learning the pace, the 8–10 hour estimate matters less than your ability to stay in control mid-run.

The best route to 100% without wasting runs

Step 1: Do one clean campaign clear first

Aim for a solid clear, not a perfect one. Many achievements drop just from finishing the campaign, so there is no upside to turning your opening run into a messy cleanup attempt. Use it to learn chapter flow, enemy patterns, and which weapons and upgrades feel reliable in your hands. That run also becomes your reference map: the chapter you clear most comfortably is usually the best place to chase a rank, not the one that looks easiest on paper.

Step 2: Notice what you are skipping

System achievements punish narrow play. If you always stick to one weapon type, always pick the same upgrade path, or avoid executions unless forced, you are leaving progress on the table. You do not need to force every action on the first clear — but spot early whether your style is too narrow for the list, so cleanup is short later. A varied loadout speeds this up; see our best builds and loadouts for fast runs for setups that keep you clean under pressure.

Step 3: Save deliberate challenge play for cleanup

Once the story unlocks are out of the way, target the remaining categories one by one. This is where repeated clears, specific weapon or upgrade conditions, and chapter-grade goals get manageable — you are running known content with a clear purpose instead of surviving blind.

S-RANK! is the achievement to plan around early

The clearest performance checkpoint on the list is S-RANK!, worth 30 Gamerscore for earning an S-rank in any chapter. The “any chapter” wording is the whole strategy: you do not need to S-rank the game — you need one clean S-rank, once. If you remember a single named achievement before you start cleanup, make it this one, because it tells you what kind of 100% this is: polished completion, not just completion.

Do not chase it everywhere. Pick the chapter you already handle consistently and build the attempt around stability. Use your most dependable weapons and upgrades — the run that counts is not the place to experiment. A flashy setup that gets you killed or slows your reactions is the wrong choice for an S-rank, even if it looks stronger on paper.

What ruins rank attempts is rarely one huge mistake. It is a chain of small ones: a missed execution, a scramble after taking damage, hesitation on a weapon swap, or overcommitting when the run was already good enough. Favor clean play over showy play. If one chapter already feels smooth, start there instead of hunting for a more “optimal” section.

Which achievements unlock naturally

The story side is the easiest part of the board — a first completion clears a chunk of it by itself. Depending on how broadly you play, you will also chip away at some weapon, upgrade, and execution goals without targeting them directly.

• Story progression achievements are the least stressful part of the list.
• General combat goals come naturally if you vary your tools instead of forcing one favorite every run.
• Anything tied to repeated use of the core systems gets more likely if you experiment during your first clear.

The mistake here is playing too conservatively for too long. A safe clear is fine, but if you refuse executions, ignore unfamiliar weapons, or auto-pick the same upgrades, your cleanup phase drags out.

Which achievements need deliberate cleanup

The back half is the varied stuff: enemy-specific actions, upgrade choices, weapon requirements, and multiple full runs. These separate a normal clear from a full completion, and they are why completion times swing even when the headline number looks modest.

• Performance goals like chapter ranking — they depend on execution, not time invested.
• System-specific goals if your normal style does not use the required action often.
• Repeated-clear achievements — consistency over several runs, not one lucky push.

If you want a stress test for your execution after the campaign, the endgame Boss Rush mode is the place to prove it — see how to encounter V2 in Boss Rush once you are ready for it.

Common mistakes

• Treating the first run as a cleanup run. Get a clean clear, learn the chapters, then chase conditions — not the other way around.
• Chasing S-RANK! in every chapter. It only needs one S-rank in any chapter. Pick your strongest and stop there.
• Experimenting during the run that counts. Save the flashy build for practice; bring your most dependable setup to a rank attempt.
• Playing too narrow. Sticking to one weapon and one upgrade path leaves system achievements stranded and lengthens cleanup.
• Stacking too many targets per run. One goal per cleanup run keeps your focus and your runs clean.

Practical takeaway

The plan is simple: get one clean campaign completion, let the story achievements fall in, pick a single chapter for your S-RANK! attempt and land it once for 30 Gamerscore, then run focused cleanup — one target at a time — for the weapon, upgrade, execution, and repeat-clear conditions. Approach all 48 in that order and the 1,000 Gamerscore route stays organized, with the hard achievements landing as focused skill checks rather than busywork.