As to the detergent action of a soap, Berzelius held that it was due to the free alkali liberated with water; but it is difficult to see why a solution which has just thrown off most of its fatty acids should be disposed to take up even a glyceride, and, moreover, on this theory, weak cold solutions, in which the hydrolysis is considerable, should be the best cleansers, whilst experience points to the use of hot concentrated solutions.
Like other role-playing games, killing enemies nets you experience points and items.
As long as the level does not end by just clicking on the items, you can keep going back in by restarting the mission and picking up the items over and over again until you get enough experience points.
You start the game with some rudimentary magic - a lightning attack - but you can use your experience points to purchase many other spells as well as spell upgrades.
Defeating foes gains both gold and experience points for the player and increase the characters' statistics to make them much stronger.