The Lava Birds (ZX Spectrum)

Liverpool, England, 2269 Devastated by war and global warming, the Earth has finally died :( On the plus side, it now attracts the rare and magnificent Lava Bird Queens, who use the heat from the molten earth to hatch their eggs! These eggs, unhatched, are priceless! But if they hit the lava, a vicious Lava Bird will emerge! Nerys the Space Knight is going down to Liverpool on Earth, and trying to catch as many eggs as they can while avoiding The Lava Birds! Careful though, the floor is lava! :O...