N+

Next to movement, only a single button is used to jump, but this allows the ninja to run up walls, do wall jumps and cross large distances.

Levels are divided over different episodes unlocked gradually.

Each level consists of a single screen with a time limit.

The amount of time can be replenished by collecting golden coins, but the main goals is to activate the exit, usually by touching a specific button or opening a number of doors.

Areas are filled with hazards such as spikes and droids that shoot laser or rockets.

There are also obstacles such as platforms that only move in a single direction or falling damage from high platforms.

Death is always instant, but the player is given an unlimited amount of tries.

The PSP version includes a mix of original levels and user-created ones with about 200 in total.

There is also a level editor and unlike the Xbox 360 version these can be shared with other players.

The PSP version shows the levels from a "medium" distance, while the DS version contains a far view and a close view on the screens.

Physics are also slightly different in each version.

There are both competitive and cooperative game modes available in multiplayer sessions.

Players can switch between the pure mode with original graphics and the plus mode with enhanced visuals.

The unlockables includes victory screens, new music and new colours for the ninja.

N+ for Nintendo DS is currently worth €86.42 loose, €105.85 complete in box, and €135.94 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

N+ has only a handful of tracked market sales, suggesting relative scarcity compared to more common Nintendo DS titles.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For N+, loose is €86.42 and CIB is €105.85 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of N+ is currently worth €86.42 loose, versus €71.77 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.