Alter Echo

But something is wrong on the planet Proteus, the only known source of Multiplast.

Now the simple worker Nevin has to investigate and stop the megalomaniac shape shifter Paavo who controls an even more powerful substance.

Luckily soon after the beginning of the game Nevin gets his hands on a special suit, which allows him to morph into three forms.

The sword form is for melee combat, in which combos can be triggered by using the correct button combinations.

The cannon form is a big robot which is more suited for gunplay and the stealth form is a futuristic lizard with a long tongue.

During combat the player can instantly switch between the forms, which allows for many combinations depending on the former action or movement.

This gets rewarded with plasma points which are used to upgrade Nevin's life energy, new moves or better weapons.

Besides combat, the game features basic switch puzzles and rhythm-based mini games.

Most notable is the Time Dilation Mode, which can be activated near enemies - then the mini game begins and, if successfully completed, launches an especially powerful attack.

Alter Echo for PlayStation 2 is currently worth €10.62 loose, €5.35 complete in box, and €21.24 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Alter Echo has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

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 Alter Echo, loose is €10.62 and CIB is €5.35 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Alter Echo is currently worth €10.62 loose, versus €9.20 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.