Despite the same title, cover artwork and publisher the ZX Spectrum version is a different game than the ones released for the VIC-20 and Commodore 16/Plus4 .
The game differs from its predecessor by an increase in the size of the play area (including a neighbouring girls' school) and a number of gameplay changes.
The girls' school incorporates its own new characters including undistinguished girls with hockey sticks, Hayley (girlfriend of the main character Eric) and Miss Take (the headmistress). Only at break time and lunch times are the girls allowed to mingle with the boys, in the central grassy playground, separated at other times by a high gate. The opening and closing of the gate is controlled by the school caretaker Albert, a new character to the game. It is also possible for Eric to sneak over the gate into the girls' school during lesson times, either using the bicycle (after completing the challenge of finding its lock's combination and then performing a tricky manoeuvre on it), by watering the flower beside the gate and then jumping on it, or by kissing Hayley through the gate. When the girls and boys are allowed to mingle and when Eric gains access to the
A action game in which the task of the player is to search the maze and collect the parts of a robot, in the correct order, before energy is exhausted.
Riddler's Den is similar to Ultimate's games such as SabreWulf or Atic Atac, twinning maze with puzzle-solving elements - and it also includes some RPG elements.
Regarding the story, Trunkie, the Manlephant, has entered the Riddler's Den to complete the 1st part of his quest by finding the Golden Tusk and ultimately meet the Great Golden God Gregogo.
To be successful in these tasks, Trunkie will have to decipher how to take advantage from the many objects he'll find in the way.
Don't Buy This is a ZX Spectrum video game compilation released in 1985. As described on the box, it contains five of the poorest games submitted to Firebird.
Instead of rejecting the submissions, they decided to mock the original developers by releasing them together and publicly brand it as "unoriginal" and "awful". Firebird even disowned all their copyright to the game and encouraged buyers to pirate it at will.
Players take control of a CIA agent wearing a battery powered suit, as he tries to recover the pieces of the MIG Starfighter, a powerful aircraft, which are scattered around a military complex. Locked doors must be opened and security avoided. Any contact with enemies or booby traps will drain the suit's batteries. If the suit's batteries run out completely, the player will die.