START the game.
This game tests your knowledge of the 3D spatial relationships between the organs in the frog. The game starts with an image of the nerves in the frog. The object is to build up the rest of the organs in the frog by selecting each organ and clicking on its correct position in the image.
Don't try this until you have used the dissection kit awhile and gotten a good idea of where the organs are. Building a frog can be harder than it looks.
The controls in the game form are similar to that of the dissection kit. To select an organ, click on its corresponding checkbox. (It is an error to try to select more than one organ at a time.) You must then click on the image where you think that organ goes. If you are successful, an image of the frog will be rendered that includes that organ.
If you are not successful, you will get back the image without that organ. You must then select a checkbox again (it doesn't have to be the same organ) and click on the image again. Remembering to select an organ again after an unsuccessful try is an irritating part of the frog builder, but I don't see a way around it.
You will only be successful in placing an organ if that organ will be visible at the place you select, given the current arrangement of organs. Thus a major part of the game is making sure you leave the organs that will obscure other ones until last. For example, choosing the skeleton or liver first is not a good idea.
If you get stuck you have several options. You can delete some of the currently visible organs if you think they are obscuring the one you have currently selected. To delete organ(s), click on their boxes, and then click near an edge of the main image, or any other place an organ is highly unlikely to be, to update it.
Alternatively, you can click on one of the red or green arrows, or on the icons of the frog, to change the angle on the frog in the same way as in the dissection kit. The most useful choice is to click on one of the two upper left icons to get a top or bottom view of the frog, respectively.
You can also change the size of the image at any time. The larger the image, the easier it will be, but it will be slower if you have a slower network connection. If you are stuck you can enlarge the image, and then shrink it again once you have gotten past the hard part.
Note that changing the view or image size has precedence over selecting an organ. If you select the organ and then change the view, the organ selection will be ignored.
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This page was last updated December 6, 1999.