GamePlay
You play the role of farmer brown, defending your crops from the steadly increasing hordes of invaders. They attack at each dawn and at each dusk. Your fully grown trees will produce a seed at night, At daybreak any seeds on the ground will begin to grow, during daylight all trees will grow until they mature. You can also pick up the seeds and then stick them onto an existing mature tree to mutate it into a tree that shoots at the invading hordes.
Youre attacked by four types of enemies
To defeat the enemy you are supplied with four sorts of weapons with the same colors as the enemy, maximum damage is given if the color of the weapon matches the anamies color. If the color is opposite to the enemies color then damage is only minimal. The pairings are earth+air and fire+water.
Controls
Images

The player has built up a nice orchard here.

The game can be played either with an over the shoulder or top down camera. The player is supplied with a torch so its not completely dark.

The sun is about to set thus a new wave of monsters will appear.

The player has stuck a few seeds onto one tree on the left, when you do this the tree becomes infertile (it will not produce any more seeds) but the seeds that are attached on the tree gain the ability to shoot at the enemy

The flamethrower can be a useful weapon at night since it gives off a bit of lightWhen a powerup appears you have ten seconds to collect it.

Another top down screenshot.