Alper point­ed me to this slight­ly retard­ed but at the same time engross­ing rein­ter­pre­ta­tion of the com­put­er RPG: mis­sions and ene­mies are laid out on a grid. You fin­ish or defeat them by click­ing repeat­ed­ly (shades of Cow Click­er here). Then hov­er over the XP and mon­ey that appears to cash in. To get to the hard­er ones you need to lev­el up and pur­chase kit. There is no declar­a­tive lay­er what so ever but it still works. Strange.