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Play Super Mario Bros.: The Lost Levels online and experience one of the most challenging adventures in the classic Super Mario series. Originally released in Japan as the sequel to Super Mario Bros., this side-scrolling platform game keeps the familiar running and jumping mechanics of the original while introducing more difficult stages, deceptive obstacles, and dangerous new gameplay elements.
Guide Mario or Luigi through a collection of carefully designed worlds filled with bottomless pits, moving platforms, hidden blocks, powerful enemies, and traps created to test experienced players.
Super Mario Bros.: The Lost Levels was designed as a tougher follow-up to the original Super Mario Bros. The controls and visual style feel familiar, but the level design demands greater precision, patience, and knowledge of classic platforming mechanics.
Players must carefully time jumps, avoid unexpected hazards, and learn the layout of each stage. Some obstacles are deliberately placed to surprise players, making experimentation and repeated attempts an important part of the experience.
At the beginning of the game, players can choose between Mario and Luigi. Each character has different movement characteristics that affect how the stages are played.
Mario offers more balanced handling, making him easier to control during difficult platforming sections. Luigi can jump higher and farther, but his movement is more slippery and requires additional care when landing on narrow platforms.
Choosing the right character can make a major difference when facing the game's most demanding stages.
Super Mario Bros.: The Lost Levels introduces the Poison Mushroom, a dangerous item designed to resemble a helpful Super Mushroom. Touching it damages Mario or Luigi instead of providing a power-up.
Poison Mushrooms add another layer of risk to item blocks and force players to pay close attention before collecting unfamiliar objects. They became one of the game's most recognizable additions to the Mario series.
The game contains increasingly difficult worlds filled with obstacles that require accurate movement and careful timing.
Challenges include:
Many stages reward players who observe enemy patterns and plan their movements before attempting difficult jumps.
Hidden blocks are used throughout the game in both helpful and dangerous ways. Some contain useful items or create platforms that allow players to reach higher areas. Others appear directly above important jumps and can cause Mario or Luigi to fall into a pit.
The game also includes pipes and Warp Zones that may send players backward rather than helping them advance. These deceptive elements make exploration more unpredictable than in the original Super Mario Bros.
Familiar power-ups return to help players overcome the difficult stages.
The Super Mushroom allows Mario or Luigi to grow larger and survive an additional hit. The Fire Flower provides the ability to throw fireballs at enemies, while the Starman grants temporary invincibility.
Because the levels are more difficult, keeping a power-up can be especially valuable. Careful players can use these abilities to make dangerous enemy sections easier to complete.
Super Mario Bros.: The Lost Levels features a full collection of side-scrolling worlds containing outdoor stages, underground areas, underwater levels, athletic platforming challenges, and enemy-filled castles.
Each world introduces more demanding combinations of obstacles. Later stages require players to combine precise jumping, enemy avoidance, momentum control, and knowledge of hidden mechanics.
Additional secret content gives skilled players even more stages to discover after meeting certain completion requirements.
Unlike many Mario games designed to welcome new players, Super Mario Bros.: The Lost Levels is best known for its high difficulty. It assumes that players already understand the controls and mechanics introduced in the original Super Mario Bros.
The game is well suited to players who enjoy:
Every cleared stage feels rewarding because success depends on timing, concentration, and practice.
The objective remains simple: run from the beginning of each stage to the flagpole or castle at the end. Reaching that goal, however, can require carefully planned jumps and fast reactions.
Players can defeat many enemies by jumping on them or using fireballs. Coins can be collected throughout the stages, and gathering enough coins awards an extra life.
The familiar mechanics make the game easy to understand, while the difficult level design makes it challenging to master.
Enjoy Super Mario Bros.: The Lost Levels directly in your browser with an online retro emulator. Choose Mario or Luigi, avoid Poison Mushrooms, discover hidden blocks, overcome dangerous Warp Zones, and complete some of the most difficult stages in the classic Super Mario series.
Start playing and test your platforming skills in a demanding retro adventure built for experienced Mario fans.
Super Mario Bros.: The Lost Levels is a challenging side-scrolling platform game featuring demanding jumps, hidden blocks, poison mushrooms, powerful winds, and dangerous obstacle-filled stages. Guide Mario or Luigi through a tougher adventure designed for experienced players.
